390521032 has 32 divisors (see below), whose sum is σ = 804110400. Its totient is φ = 176328000.

The previous prime is 390521029. The next prime is 390521099. The reversal of 390521032 is 230125093.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 390520988 and 390521006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407 + ... + 27982.

It is an arithmetic number, because the mean of its divisors is an integer number (25128450).

Almost surely, 2^390521032 is an apocalyptic number.

It is an amenable number.

390521032 is an abundant number, since it is smaller than the sum of its proper divisors (413589368).

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

390521032 is a wasteful number, since it uses less digits than its factorization.

390521032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29557 (or 29553 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 390521032 is about 19761.6049955463. The cubic root of 390521032 is about 730.9395745529.

The spelling of 390521032 in words is "three hundred ninety million, five hundred twenty-one thousand, thirty-two".