258378 has 8 divisors (see below), whose sum is σ = 516768. Its totient is φ = 86124.

The previous prime is 258373. The next prime is 258389. The reversal of 258378 is 873852.

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

258378 is an admirable number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 258378.

It is not an unprimeable number, because it can be changed into a prime (258373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21526 + ... + 21537.

It is an arithmetic number, because the mean of its divisors is an integer number (64596).

2²⁵⁸³⁷⁸ is an apocalyptic number.

258378 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.

258378 is a wasteful number, since it uses less digits than its factorization.

258378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43068.

The product of its digits is 13440, while the sum is 33.

The square root of 258378 is about 508.3089611644. The cubic root of 258378 is about 63.6920426729.

It can be divided in two parts, 258 and 378, that added together give a palindrome (636).

The spelling of 258378 in words is "two hundred fifty-eight thousand, three hundred seventy-eight".