399258 has 24 divisors (see below), whose sum is σ = 887796. Its totient is φ = 129600.

The previous prime is 399241. The next prime is 399263. The reversal of 399258 is 852993.

It can be written as a sum of positive squares in 2 ways, for example, as 356409 + 42849 = 597^2 + 207^2 .

It is a Curzon 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, 468 + ... + 1008.

2³⁹⁹²⁵⁸ is an apocalyptic number.

399258 is an abundant number, since it is smaller than the sum of its proper divisors (488538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

399258 is a wasteful number, since it uses less digits than its factorization.

399258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 587 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 399258 is about 631.8686572382. The cubic root of 399258 is about 73.6350425834.

The spelling of 399258 in words is "three hundred ninety-nine thousand, two hundred fifty-eight".