258404 has 6 divisors (see below), whose sum is σ = 452214. Its totient is φ = 129200.

The previous prime is 258403. The next prime is 258407. The reversal of 258404 is 404852.

It can be written as a sum of positive squares in only one way, i.e., 252004 + 6400 = 502^2 + 80^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 258404.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258404.

It is not an unprimeable number, because it can be changed into a prime (258403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32297 + ... + 32304.

It is an arithmetic number, because the mean of its divisors is an integer number (75369).

2²⁵⁸⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

258404 is a deficient number, since it is larger than the sum of its proper divisors (193810).

258404 is a wasteful number, since it uses less digits than its factorization.

258404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64605 (or 64603 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 258404 is about 508.3345355177. The cubic root of 258404 is about 63.6941789972.

The spelling of 258404 in words is "two hundred fifty-eight thousand, four hundred four".