40902864 has 20 divisors (see below), whose sum is σ = 105665856. Its totient is φ = 13634272.

The previous prime is 40902859. The next prime is 40902881. The reversal of 40902864 is 46820904.

It is a congruent 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, 426024 + ... + 426119.

Almost surely, 2^40902864 is an apocalyptic number.

It is an amenable number.

40902864 is an abundant number, since it is smaller than the sum of its proper divisors (64762992).

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

40902864 is a wasteful number, since it uses less digits than its factorization.

40902864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852154 (or 852148 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 40902864 is about 6395.5346922677. The cubic root of 40902864 is about 344.5491948567.

The spelling of 40902864 in words is "forty million, nine hundred two thousand, eight hundred sixty-four".