258305780 has 24 divisors (see below), whose sum is σ = 544094880. Its totient is φ = 103007520.

The previous prime is 258305777. The next prime is 258305791. The reversal of 258305780 is 87503852.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12890 + ... + 26129.

It is an arithmetic number, because the mean of its divisors is an integer number (22670620).

Almost surely, 2^258305780 is an apocalyptic number.

258305780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258305780 is an abundant number, since it is smaller than the sum of its proper divisors (285789100).

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

258305780 is a wasteful number, since it uses less digits than its factorization.

258305780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39359 (or 39357 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 258305780 is about 16071.8941011942. The cubic root of 258305780 is about 636.8610786942.

The spelling of 258305780 in words is "two hundred fifty-eight million, three hundred five thousand, seven hundred eighty".