390320975 has 12 divisors (see below), whose sum is σ = 527998200. Its totient is φ = 283869600.

The previous prime is 390320963. The next prime is 390320989. The reversal of 390320975 is 579023093.

It is not a de Polignac number, because 390320975 - 2²⁶ = 323212111 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 709400 + ... + 709949.

It is an arithmetic number, because the mean of its divisors is an integer number (43999850).

Almost surely, 2^390320975 is an apocalyptic number.

390320975 is a deficient number, since it is larger than the sum of its proper divisors (137677225).

390320975 is a wasteful number, since it uses less digits than its factorization.

390320975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419370 (or 1419365 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 38.

The square root of 390320975 is about 19756.5425872039. The cubic root of 390320975 is about 730.8147374389.

The spelling of 390320975 in words is "three hundred ninety million, three hundred twenty thousand, nine hundred seventy-five".