258023936 has 40 divisors (see below), whose sum is σ = 537983424. Its totient is φ = 123397120.

The previous prime is 258023929. The next prime is 258023939. The reversal of 258023936 is 639320852.

It is a self number, because there is not a number n which added to its sum of digits gives 258023936.

It is not an unprimeable number, because it can be changed into a prime (258023939) 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, 821 + ... + 22731.

Almost surely, 2^258023936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258023936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268991712).

258023936 is an abundant number, since it is smaller than the sum of its proper divisors (279959488).

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

258023936 is an equidigital number, since it uses as much as digits as its factorization.

258023936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21952 (or 21936 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 258023936 is about 16063.1234820629. The cubic root of 258023936 is about 636.6293626282.

The spelling of 258023936 in words is "two hundred fifty-eight million, twenty-three thousand, nine hundred thirty-six".