390025 has 6 divisors (see below), whose sum is σ = 483662. Its totient is φ = 312000.

The previous prime is 390001. The next prime is 390043. The reversal of 390025 is 520093.

It can be written as a sum of positive squares in 3 ways, for example, as 97344 + 292681 = 312^2 + 541^2 .

It is not a de Polignac number, because 390025 - 2⁷ = 389897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389984 and 390011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7776 + ... + 7825.

2³⁹⁰⁰²⁵ is an apocalyptic number.

It is an amenable number.

390025 is a deficient number, since it is larger than the sum of its proper divisors (93637).

390025 is a wasteful number, since it uses less digits than its factorization.

390025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15611 (or 15606 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 390025 is about 624.5198155383. The cubic root of 390025 is about 73.0629968491.

The spelling of 390025 in words is "three hundred ninety thousand, twenty-five".