258668612 has 24 divisors (see below), whose sum is σ = 456894816. Its totient is φ = 128132928.

The previous prime is 258668581. The next prime is 258668623. The reversal of 258668612 is 216866852.

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, 401963 + ... + 402605.

It is an arithmetic number, because the mean of its divisors is an integer number (19037284).

Almost surely, 2^258668612 is an apocalyptic number.

It is an amenable number.

258668612 is a deficient number, since it is larger than the sum of its proper divisors (198226204).

258668612 is a wasteful number, since it uses less digits than its factorization.

258668612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427 (or 1425 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 258668612 is about 16083.1779198018. The cubic root of 258668612 is about 637.1591304451.

The spelling of 258668612 in words is "two hundred fifty-eight million, six hundred sixty-eight thousand, six hundred twelve".