258891442 has 32 divisors (see below), whose sum is σ = 410848704. Its totient is φ = 122212800.

The previous prime is 258891431. The next prime is 258891443. The reversal of 258891442 is 244198852.

It is not an unprimeable number, because it can be changed into a prime (258891443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374317 + ... + 375007.

It is an arithmetic number, because the mean of its divisors is an integer number (12839022).

Almost surely, 2^258891442 is an apocalyptic number.

258891442 is a deficient number, since it is larger than the sum of its proper divisors (151957262).

258891442 is a wasteful number, since it uses less digits than its factorization.

258891442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874.

The product of its digits is 184320, while the sum is 43.

The square root of 258891442 is about 16090.1038529899. The cubic root of 258891442 is about 637.3420381152.

The spelling of 258891442 in words is "two hundred fifty-eight million, eight hundred ninety-one thousand, four hundred forty-two".