40183904 has 12 divisors (see below), whose sum is σ = 79112124. Its totient is φ = 20091936.

The previous prime is 40183883. The next prime is 40183909. The reversal of 40183904 is 40938104.

It is a super-2 number, since 2×40183904² = 3229492281362432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40183909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627842 + ... + 627905.

It is an arithmetic number, because the mean of its divisors is an integer number (6592677).

Almost surely, 2^40183904 is an apocalyptic number.

It is an amenable number.

40183904 is a deficient number, since it is larger than the sum of its proper divisors (38928220).

40183904 is a wasteful number, since it uses less digits than its factorization.

40183904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255757 (or 1255749 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 40183904 is about 6339.0775354148. The cubic root of 40183904 is about 342.5185071783.

The spelling of 40183904 in words is "forty million, one hundred eighty-three thousand, nine hundred four".