258540232 has 32 divisors (see below), whose sum is σ = 497041920. Its totient is φ = 126017920.

The previous prime is 258540223. The next prime is 258540253. The reversal of 258540232 is 232045852.

It is a super-2 number, since 2×258540232² = 133686103125227648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 258540194 and 258540203.

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, 104433 + ... + 106879.

It is an arithmetic number, because the mean of its divisors is an integer number (15532560).

Almost surely, 2^258540232 is an apocalyptic number.

It is an amenable number.

258540232 is a deficient number, since it is larger than the sum of its proper divisors (238501688).

258540232 is a wasteful number, since it uses less digits than its factorization.

258540232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781 (or 2777 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 258540232 is about 16079.1862978199. The cubic root of 258540232 is about 637.0537033702.

The spelling of 258540232 in words is "two hundred fifty-eight million, five hundred forty thousand, two hundred thirty-two".