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40370480 = 245504631
BaseRepresentation
bin1001101000000…
…0000100110000
32210222000212222
42122000010300
540313323410
64001140212
71000100123
oct232000460
983860788
1040370480
1120873a37
121162a668
138496377
14550c3ba
153826955
hex2680130

40370480 has 20 divisors (see below), whose sum is σ = 93861552. Its totient is φ = 16148160.

The previous prime is 40370479. The next prime is 40370483. The reversal of 40370480 is 8407304.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40370483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252236 + ... + 252395.

Almost surely, 240370480 is an apocalyptic number.

40370480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40370480 is an abundant number, since it is smaller than the sum of its proper divisors (53491072).

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

40370480 is a wasteful number, since it uses less digits than its factorization.

40370480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504644 (or 504638 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 40370480 is about 6353.7768295715. The cubic root of 40370480 is about 343.0477993831.

Adding to 40370480 its reverse (8407304), we get a palindrome (48777784).

The spelling of 40370480 in words is "forty million, three hundred seventy thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 504631 1009262 2018524 2523155 4037048 5046310 8074096 10092620 20185240 40370480