258494540 has 12 divisors (see below), whose sum is σ = 542838576. Its totient is φ = 103397808.

The previous prime is 258494531. The next prime is 258494567. The reversal of 258494540 is 45494852.

258494540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6462344 + ... + 6462383.

It is an arithmetic number, because the mean of its divisors is an integer number (45236548).

Almost surely, 2^258494540 is an apocalyptic number.

258494540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258494540 is an abundant number, since it is smaller than the sum of its proper divisors (284344036).

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

258494540 is a wasteful number, since it uses less digits than its factorization.

258494540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12924736 (or 12924734 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 258494540 is about 16077.7653919940. The cubic root of 258494540 is about 637.0161721737.

The spelling of 258494540 in words is "two hundred fifty-eight million, four hundred ninety-four thousand, five hundred forty".