258731396 has 36 divisors (see below), whose sum is σ = 568788864. Its totient is φ = 100803120.

The previous prime is 258731357. The next prime is 258731401. The reversal of 258731396 is 693137852.

It is a super-2 number, since 2×258731396² = 133883870552217632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34796 + ... + 41571.

Almost surely, 2^258731396 is an apocalyptic number.

It is an amenable number.

258731396 is an abundant number, since it is smaller than the sum of its proper divisors (310057468).

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

258731396 is a wasteful number, since it uses less digits than its factorization.

258731396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76400 (or 76387 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 258731396 is about 16085.1296544355. The cubic root of 258731396 is about 637.2106766589.

The spelling of 258731396 in words is "two hundred fifty-eight million, seven hundred thirty-one thousand, three hundred ninety-six".