40857008 has 20 divisors (see below), whose sum is σ = 81715008. Its totient is φ = 19769280.

The previous prime is 40856957. The next prime is 40857013. The reversal of 40857008 is 80075804.

40857008 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40691 + ... + 41682.

Almost surely, 2^40857008 is an apocalyptic number.

It is an amenable number.

40857008 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40857008 is a wasteful number, since it uses less digits than its factorization.

40857008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82412 (or 82406 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 40857008 is about 6391.9486856513. The cubic root of 40857008 is about 344.4203892400.

Subtracting 40857008 from its reverse (80075804), we obtain a triangular number (39218796 = T₈₈₅₆).

The spelling of 40857008 in words is "forty million, eight hundred fifty-seven thousand, eight".