40615856 has 20 divisors (see below), whose sum is σ = 83322792. Its totient is φ = 19113216.

The previous prime is 40615811. The next prime is 40615867. The reversal of 40615856 is 65851604.

It is a happy number.

It is a super-2 number, since 2×40615856² = 3299295517225472, which contains 22 as substring.

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, 74390 + ... + 74933.

Almost surely, 2^40615856 is an apocalyptic number.

It is an amenable number.

40615856 is an abundant number, since it is smaller than the sum of its proper divisors (42706936).

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

40615856 is a wasteful number, since it uses less digits than its factorization.

40615856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149348 (or 149342 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 40615856 is about 6373.0570372467. The cubic root of 40615856 is about 343.7414227722.

The spelling of 40615856 in words is "forty million, six hundred fifteen thousand, eight hundred fifty-six".