39990832 has 40 divisors (see below), whose sum is σ = 90235296. Its totient is φ = 16813056.

The previous prime is 39990829. The next prime is 39990833. The reversal of 39990832 is 23809993.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (39990833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2568 + ... + 9304.

Almost surely, 2^39990832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39990832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45117648).

39990832 is an abundant number, since it is smaller than the sum of its proper divisors (50244464).

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

39990832 is a wasteful number, since it uses less digits than its factorization.

39990832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6805 (or 6799 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 39990832 is about 6323.8304847616. The cubic root of 39990832 is about 341.9690589064.

The spelling of 39990832 in words is "thirty-nine million, nine hundred ninety thousand, eight hundred thirty-two".