258063138 has 32 divisors (see below), whose sum is σ = 580742400. Its totient is φ = 84930768.

The previous prime is 258063137. The next prime is 258063161. The reversal of 258063138 is 831360852.

258063138 is a `hidden beast` number, since 2 + 580 + 63 + 13 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (258063133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25981 + ... + 34512.

It is an arithmetic number, because the mean of its divisors is an integer number (18148200).

Almost surely, 2^258063138 is an apocalyptic number.

258063138 is an abundant number, since it is smaller than the sum of its proper divisors (322679262).

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

258063138 is a wasteful number, since it uses less digits than its factorization.

258063138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60583 (or 60577 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 258063138 is about 16064.3436840725. The cubic root of 258063138 is about 636.6616023768.

The spelling of 258063138 in words is "two hundred fifty-eight million, sixty-three thousand, one hundred thirty-eight".