79990190 has 64 divisors (see below), whose sum is σ = 174873600. Its totient is φ = 25733376.

The previous prime is 79990187. The next prime is 79990217. The reversal of 79990190 is 9109997.

It is a super-2 number, since 2×79990190² = 12796860992472200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 181991 + ... + 182429.

It is an arithmetic number, because the mean of its divisors is an integer number (2732400).

Almost surely, 2^79990190 is an apocalyptic number.

79990190 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

79990190 is an abundant number, since it is smaller than the sum of its proper divisors (94883410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79990190 is a wasteful number, since it uses less digits than its factorization.

79990190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609.

The product of its (nonzero) digits is 45927, while the sum is 44.

The square root of 79990190 is about 8943.7234975149. The cubic root of 79990190 is about 430.8693247828.

The spelling of 79990190 in words is "seventy-nine million, nine hundred ninety thousand, one hundred ninety".