258860398 has 8 divisors (see below), whose sum is σ = 388419120. Its totient is φ = 129387360.

The previous prime is 258860363. The next prime is 258860431. The reversal of 258860398 is 893068852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13243 + ... + 26326.

It is an arithmetic number, because the mean of its divisors is an integer number (48552390).

Almost surely, 2^258860398 is an apocalyptic number.

258860398 is a deficient number, since it is larger than the sum of its proper divisors (129558722).

258860398 is a wasteful number, since it uses less digits than its factorization.

258860398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42842.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 258860398 is about 16089.1391317249. The cubic root of 258860398 is about 637.3165622672.

The spelling of 258860398 in words is "two hundred fifty-eight million, eight hundred sixty thousand, three hundred ninety-eight".