258426992 has 20 divisors (see below), whose sum is σ = 501132360. Its totient is φ = 129102528.

The previous prime is 258426967. The next prime is 258426997. The reversal of 258426992 is 299624852.

258426992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258426997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14234 + ... + 26822.

It is an arithmetic number, because the mean of its divisors is an integer number (25056618).

Almost surely, 2^258426992 is an apocalyptic number.

It is an amenable number.

258426992 is a deficient number, since it is larger than the sum of its proper divisors (242705368).

258426992 is a wasteful number, since it uses less digits than its factorization.

258426992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13880 (or 13874 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 258426992 is about 16075.6645896834. The cubic root of 258426992 is about 636.9606804574.

The spelling of 258426992 in words is "two hundred fifty-eight million, four hundred twenty-six thousand, nine hundred ninety-two".