79400122 has 4 divisors (see below), whose sum is σ = 119100186. Its totient is φ = 39700060.

The previous prime is 79400119. The next prime is 79400141. The reversal of 79400122 is 22100497.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70879561 + 8520561 = 8419^2 + 2919^2 .

It is a super-2 number, since 2×79400122² = 12608758747229768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19850029 + ... + 19850032.

Almost surely, 2^79400122 is an apocalyptic number.

79400122 is a deficient number, since it is larger than the sum of its proper divisors (39700064).

79400122 is a wasteful number, since it uses less digits than its factorization.

79400122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39700063.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 79400122 is about 8910.6746097027. The cubic root of 79400122 is about 429.8072364767.

The spelling of 79400122 in words is "seventy-nine million, four hundred thousand, one hundred twenty-two".