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40234680 = 23325731531
BaseRepresentation
bin1001100101111…
…0111010111000
32210201010121100
42121132322320
540300002210
63554211400
7665663163
oct231367270
983633540
1040234680
1120790a02
1211583b60
138449605
1454b4ada
1537eb5c0
hex265eeb8

40234680 has 96 divisors (see below), whose sum is σ = 132640560. Its totient is φ = 10575360.

The previous prime is 40234661. The next prime is 40234681. The reversal of 40234680 is 8643204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40234681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25515 + ... + 27045.

Almost surely, 240234680 is an apocalyptic number.

40234680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40234680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66320280).

40234680 is an abundant number, since it is smaller than the sum of its proper divisors (92405880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40234680 is a wasteful number, since it uses less digits than its factorization.

40234680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 40234680 is about 6343.0812701715. The cubic root of 40234680 is about 342.6627141683.

Adding to 40234680 its reverse (8643204), we get a palindrome (48877884).

The spelling of 40234680 in words is "forty million, two hundred thirty-four thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 73 90 120 146 180 219 292 360 365 438 584 657 730 876 1095 1314 1460 1531 1752 2190 2628 2920 3062 3285 4380 4593 5256 6124 6570 7655 8760 9186 12248 13140 13779 15310 18372 22965 26280 27558 30620 36744 45930 55116 61240 68895 91860 110232 111763 137790 183720 223526 275580 335289 447052 551160 558815 670578 894104 1005867 1117630 1341156 1676445 2011734 2235260 2682312 3352890 4023468 4470520 5029335 6705780 8046936 10058670 13411560 20117340 40234680