390925 has 12 divisors (see below), whose sum is σ = 510880. Its totient is φ = 295920.

The previous prime is 390893. The next prime is 390953. The reversal of 390925 is 529093.

It is not a de Polignac number, because 390925 - 2⁵ = 390893 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

390925 is a lucky number.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 390893 and 390902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64 + ... + 886.

2³⁹⁰⁹²⁵ is an apocalyptic number.

It is an amenable number.

390925 is a deficient number, since it is larger than the sum of its proper divisors (119955).

390925 is a wasteful number, since it uses less digits than its factorization.

390925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 390925 is about 625.2399539377. The cubic root of 390925 is about 73.1191523802.

The spelling of 390925 in words is "three hundred ninety thousand, nine hundred twenty-five".