258428512 has 24 divisors (see below), whose sum is σ = 526327200. Its totient is φ = 124758144.

The previous prime is 258428479. The next prime is 258428531. The reversal of 258428512 is 215824852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138312 + ... + 140167.

It is an arithmetic number, because the mean of its divisors is an integer number (21930300).

Almost surely, 2^258428512 is an apocalyptic number.

It is an amenable number.

258428512 is an abundant number, since it is smaller than the sum of its proper divisors (267898688).

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

258428512 is a wasteful number, since it uses less digits than its factorization.

258428512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278518 (or 278510 counting only the distinct ones).

The product of its digits is 51200, while the sum is 37.

The square root of 258428512 is about 16075.7118660419. The cubic root of 258428512 is about 636.9619292671.

The spelling of 258428512 in words is "two hundred fifty-eight million, four hundred twenty-eight thousand, five hundred twelve".