258190605 has 32 divisors (see below), whose sum is σ = 459688320. Its totient is φ = 137496960.

The previous prime is 258190591. The next prime is 258190609. The reversal of 258190605 is 506091852.

It is a happy number.

It is not a de Polignac number, because 258190605 - 2⁵ = 258190573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 258190605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258190609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146409 + ... + 148161.

It is an arithmetic number, because the mean of its divisors is an integer number (14365260).

Almost surely, 2^258190605 is an apocalyptic number.

It is an amenable number.

258190605 is a deficient number, since it is larger than the sum of its proper divisors (201497715).

258190605 is a wasteful number, since it uses less digits than its factorization.

258190605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2852 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 258190605 is about 16068.3105832567. The cubic root of 258190605 is about 636.7664087525.

The spelling of 258190605 in words is "two hundred fifty-eight million, one hundred ninety thousand, six hundred five".