258402 has 8 divisors (see below), whose sum is σ = 516816. Its totient is φ = 86132.

The previous prime is 258389. The next prime is 258403. The reversal of 258402 is 204852.

It is a sphenic number, since it is the product of 3 distinct primes.

258402 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258402.

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

258402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21528 + ... + 21539.

It is an arithmetic number, because the mean of its divisors is an integer number (64602).

2²⁵⁸⁴⁰² is an apocalyptic number.

258402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

258402 is a wasteful number, since it uses less digits than its factorization.

258402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43072.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 258402 is about 508.3325683054. The cubic root of 258402 is about 63.6940146696.

The spelling of 258402 in words is "two hundred fifty-eight thousand, four hundred two".