258442504 has 8 divisors (see below), whose sum is σ = 484579710. Its totient is φ = 129221248.

The previous prime is 258442493. The next prime is 258442507. The reversal of 258442504 is 405244852.

It can be written as a sum of positive squares in only one way, i.e., 227104900 + 31337604 = 15070^2 + 5598^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 258442504.

It is not an unprimeable number, because it can be changed into a prime (258442507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16152649 + ... + 16152664.

Almost surely, 2^258442504 is an apocalyptic number.

It is an amenable number.

258442504 is a deficient number, since it is larger than the sum of its proper divisors (226137206).

258442504 is a wasteful number, since it uses less digits than its factorization.

258442504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32305319 (or 32305315 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 34.

The square root of 258442504 is about 16076.1470508328. The cubic root of 258442504 is about 636.9734246582.

The spelling of 258442504 in words is "two hundred fifty-eight million, four hundred forty-two thousand, five hundred four".