258198872 has 8 divisors (see below), whose sum is σ = 484122900. Its totient is φ = 129099432.

The previous prime is 258198859. The next prime is 258198887. The reversal of 258198872 is 278891852.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 258198872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16137422 + ... + 16137437.

Almost surely, 2^258198872 is an apocalyptic number.

It is an amenable number.

258198872 is a deficient number, since it is larger than the sum of its proper divisors (225924028).

258198872 is a wasteful number, since it uses less digits than its factorization.

258198872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32274865 (or 32274861 counting only the distinct ones).

The product of its digits is 645120, while the sum is 50.

The square root of 258198872 is about 16068.5678266608. The cubic root of 258198872 is about 636.7732048837.

The spelling of 258198872 in words is "two hundred fifty-eight million, one hundred ninety-eight thousand, eight hundred seventy-two".