39952236 has 12 divisors (see below), whose sum is σ = 93221912. Its totient is φ = 13317408.

The previous prime is 39952229. The next prime is 39952247. The reversal of 39952236 is 63225993.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×39952236² = 3192362322799392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39952194 and 39952203.

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, 1664665 + ... + 1664688.

Almost surely, 2^39952236 is an apocalyptic number.

It is an amenable number.

39952236 is an abundant number, since it is smaller than the sum of its proper divisors (53269676).

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

39952236 is a wasteful number, since it uses less digits than its factorization.

39952236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329360 (or 3329358 counting only the distinct ones).

The product of its digits is 87480, while the sum is 39.

The square root of 39952236 is about 6320.7781166562. The cubic root of 39952236 is about 341.8590096317.

The spelling of 39952236 in words is "thirty-nine million, nine hundred fifty-two thousand, two hundred thirty-six".