390265922 has 18 divisors (see below), whose sum is σ = 597763179. Its totient is φ = 191095920.

The previous prime is 390265901. The next prime is 390265927. The reversal of 390265922 is 229562093.

It can be written as a sum of positive squares in 5 ways, for example, as 162588001 + 227677921 = 12751^2 + 15089^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=13969.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390265927) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1704104 + ... + 1704332.

Almost surely, 2^390265922 is an apocalyptic number.

390265922 is a deficient number, since it is larger than the sum of its proper divisors (207497257).

390265922 is an frugal number, since it uses more digits than its factorization.

390265922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 390265922 is about 19755.1492527898. The cubic root of 390265922 is about 730.7803764573.

The spelling of 390265922 in words is "three hundred ninety million, two hundred sixty-five thousand, nine hundred twenty-two".