258992464 has 20 divisors (see below), whose sum is σ = 503002900. Its totient is φ = 129185280.

The previous prime is 258992441. The next prime is 258992471. The reversal of 258992464 is 464299852.

It can be written as a sum of positive squares in 2 ways, for example, as 1710864 + 257281600 = 1308^2 + 16040^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12489 + ... + 25960.

It is an arithmetic number, because the mean of its divisors is an integer number (25150145).

Almost surely, 2^258992464 is an apocalyptic number.

It is an amenable number.

258992464 is a deficient number, since it is larger than the sum of its proper divisors (244010436).

258992464 is a wasteful number, since it uses less digits than its factorization.

258992464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38878 (or 38872 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The square root of 258992464 is about 16093.2428056001. The cubic root of 258992464 is about 637.4249263895.

The spelling of 258992464 in words is "two hundred fifty-eight million, nine hundred ninety-two thousand, four hundred sixty-four".