390479928 has 32 divisors (see below), whose sum is σ = 979549200. Its totient is φ = 129713408.

The previous prime is 390479923. The next prime is 390479933. The reversal of 390479928 is 829974093.

It is an interprime number because it is at equal distance from previous prime (390479923) and next prime (390479933).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390479923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20733 + ... + 34796.

Almost surely, 2^390479928 is an apocalyptic number.

It is an amenable number.

390479928 is an abundant number, since it is smaller than the sum of its proper divisors (589069272).

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

390479928 is a wasteful number, since it uses less digits than its factorization.

390479928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55831 (or 55827 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 390479928 is about 19760.5649716803. The cubic root of 390479928 is about 730.9139288199.

The spelling of 390479928 in words is "three hundred ninety million, four hundred seventy-nine thousand, nine hundred twenty-eight".