40938816 has 28 divisors (see below), whose sum is σ = 108317792. Its totient is φ = 13646208.

The previous prime is 40938797. The next prime is 40938829. The reversal of 40938816 is 61883904.

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, 106420 + ... + 106803.

Almost surely, 2^40938816 is an apocalyptic number.

It is an amenable number.

40938816 is an abundant number, since it is smaller than the sum of its proper divisors (67378976).

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

40938816 is a wasteful number, since it uses less digits than its factorization.

40938816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213238 (or 213228 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 40938816 is about 6398.3447859583. The cubic root of 40938816 is about 344.6501136671.

The spelling of 40938816 in words is "forty million, nine hundred thirty-eight thousand, eight hundred sixteen".