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40448860 = 2257512693
BaseRepresentation
bin1001101001001…
…1001101011100
32211010000101221
42122103031130
540323330420
64002543124
71000544464
oct232231534
984100357
1040448860
1120917911
1211667aa4
1384c2c4a
14552cba4
15383ecaa
hex269335c

40448860 has 24 divisors (see below), whose sum is σ = 85087296. Its totient is φ = 16152000.

The previous prime is 40448857. The next prime is 40448887. The reversal of 40448860 is 6884404.

40448860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×404488602 = 3272220550599200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13674 + ... + 16366.

It is an arithmetic number, because the mean of its divisors is an integer number (3545304).

Almost surely, 240448860 is an apocalyptic number.

It is an amenable number.

40448860 is an abundant number, since it is smaller than the sum of its proper divisors (44638436).

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

40448860 is a wasteful number, since it uses less digits than its factorization.

40448860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453 (or 3451 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 40448860 is about 6359.9418236333. The cubic root of 40448860 is about 343.2696669790.

It can be divided in two parts, 40 and 448860, that added together give a square (448900 = 6702).

The spelling of 40448860 in words is "forty million, four hundred forty-eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 751 1502 2693 3004 3755 5386 7510 10772 13465 15020 26930 53860 2022443 4044886 8089772 10112215 20224430 40448860