258008490 has 160 divisors (see below), whose sum is σ = 754128144. Its totient is φ = 63037440.

The previous prime is 258008489. The next prime is 258008497. The reversal of 258008490 is 94800852.

258008490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 128799801 + 129208689 = 11349^2 + 11367^2 .

It is not an unprimeable number, because it can be changed into a prime (258008497) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 564342 + ... + 564798.

Almost surely, 2^258008490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258008490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377064072).

258008490 is an abundant number, since it is smaller than the sum of its proper divisors (496119654).

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

258008490 is a wasteful number, since it uses less digits than its factorization.

258008490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 258008490 is about 16062.6426841912. The cubic root of 258008490 is about 636.6166589317.

The spelling of 258008490 in words is "two hundred fifty-eight million, eight thousand, four hundred ninety".