258237772 has 24 divisors (see below), whose sum is σ = 492156000. Its totient is φ = 117845376.

The previous prime is 258237761. The next prime is 258237821. The reversal of 258237772 is 277732852.

258237772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 23272 + ... + 32527.

It is an arithmetic number, because the mean of its divisors is an integer number (20506500).

Almost surely, 2^258237772 is an apocalyptic number.

It is an amenable number.

258237772 is a deficient number, since it is larger than the sum of its proper divisors (233918228).

258237772 is a wasteful number, since it uses less digits than its factorization.

258237772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55905 (or 55903 counting only the distinct ones).

The product of its digits is 329280, while the sum is 43.

The square root of 258237772 is about 16069.7782187559. The cubic root of 258237772 is about 636.8051818293.

It can be divided in two parts, 2582377 and 72, that added together give a square (2582449 = 1607²).

The spelling of 258237772 in words is "two hundred fifty-eight million, two hundred thirty-seven thousand, seven hundred seventy-two".