390400325 has 48 divisors (see below), whose sum is σ = 589140864. Its totient is φ = 250521600.

The previous prime is 390400313. The next prime is 390400337. The reversal of 390400325 is 523004093.

It is an interprime number because it is at equal distance from previous prime (390400313) and next prime (390400337).

It is not a de Polignac number, because 390400325 - 2⁸ = 390400069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 390400294 and 390400303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 835742 + ... + 836208.

It is an arithmetic number, because the mean of its divisors is an integer number (12273768).

Almost surely, 2^390400325 is an apocalyptic number.

390400325 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

390400325 is a deficient number, since it is larger than the sum of its proper divisors (198740539).

390400325 is a wasteful number, since it uses less digits than its factorization.

390400325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 777 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 390400325 is about 19758.5506806547. The cubic root of 390400325 is about 730.8642575551.

The spelling of 390400325 in words is "three hundred ninety million, four hundred thousand, three hundred twenty-five".