258404220 has 72 divisors (see below), whose sum is σ = 809128320. Its totient is φ = 66683520.

The previous prime is 258404183. The next prime is 258404227. The reversal of 258404220 is 22404852.

It is a happy number.

258404220 is a `hidden beast` number, since 258 + 404 + 2 + 2 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258404227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17575 + ... + 28734.

Almost surely, 2^258404220 is an apocalyptic number.

258404220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258404220 is an abundant number, since it is smaller than the sum of its proper divisors (550724100).

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

258404220 is a wasteful number, since it uses less digits than its factorization.

258404220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46355 (or 46350 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 258404220 is about 16074.9562985409. The cubic root of 258404220 is about 636.9419707314.

The spelling of 258404220 in words is "two hundred fifty-eight million, four hundred four thousand, two hundred twenty".