390830432 has 24 divisors (see below), whose sum is σ = 771124536. Its totient is φ = 194989312.

The previous prime is 390830389. The next prime is 390830443. The reversal of 390830432 is 234038093.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 1868 + ... + 28020.

It is an arithmetic number, because the mean of its divisors is an integer number (32130189).

Almost surely, 2^390830432 is an apocalyptic number.

390830432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

390830432 is a deficient number, since it is larger than the sum of its proper divisors (380294104).

390830432 is a wasteful number, since it uses less digits than its factorization.

390830432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26630 (or 26622 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 390830432 is about 19769.4317571345. The cubic root of 390830432 is about 731.1325586153.

The spelling of 390830432 in words is "three hundred ninety million, eight hundred thirty thousand, four hundred thirty-two".