390563265 has 16 divisors (see below), whose sum is σ = 645060096. Its totient is φ = 201580800.

The previous prime is 390563233. The next prime is 390563273. The reversal of 390563265 is 562365093.

It is not a de Polignac number, because 390563265 - 2⁵ = 390563233 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419496 + ... + 420425.

It is an arithmetic number, because the mean of its divisors is an integer number (40316256).

Almost surely, 2^390563265 is an apocalyptic number.

It is an amenable number.

390563265 is a deficient number, since it is larger than the sum of its proper divisors (254496831).

390563265 is a wasteful number, since it uses less digits than its factorization.

390563265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839960.

The product of its (nonzero) digits is 145800, while the sum is 39.

The square root of 390563265 is about 19762.6735286499. The cubic root of 390563265 is about 730.9659228208.

The spelling of 390563265 in words is "three hundred ninety million, five hundred sixty-three thousand, two hundred sixty-five".