258780492 has 18 divisors (see below), whose sum is σ = 654139668. Its totient is φ = 86260152.

The previous prime is 258780439. The next prime is 258780517. The reversal of 258780492 is 294087852.

258780492 is a `hidden beast` number, since 2 + 5 + 87 + 80 + 492 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3594138 + ... + 3594209.

Almost surely, 2^258780492 is an apocalyptic number.

It is an amenable number.

258780492 is an abundant number, since it is smaller than the sum of its proper divisors (395359176).

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

258780492 is a wasteful number, since it uses less digits than its factorization.

258780492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7188357 (or 7188352 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 258780492 is about 16086.6557121112. The cubic root of 258780492 is about 637.2509790951.

The spelling of 258780492 in words is "two hundred fifty-eight million, seven hundred eighty thousand, four hundred ninety-two".