258123480 has 64 divisors (see below), whose sum is σ = 808047360. Its totient is φ = 65839488.

The previous prime is 258123479. The next prime is 258123491. The reversal of 258123480 is 84321852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44002 + ... + 49521.

It is an arithmetic number, because the mean of its divisors is an integer number (12625740).

Almost surely, 2^258123480 is an apocalyptic number.

258123480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258123480 is an abundant number, since it is smaller than the sum of its proper divisors (549923880).

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

258123480 is a wasteful number, since it uses less digits than its factorization.

258123480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93560 (or 93556 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 258123480 is about 16066.2217089146. The cubic root of 258123480 is about 636.7112212940.

It can be divided in two parts, 25812 and 3480, that added together give a palindrome (29292).

The spelling of 258123480 in words is "two hundred fifty-eight million, one hundred twenty-three thousand, four hundred eighty".