79816442 has 8 divisors (see below), whose sum is σ = 120157716. Its totient is φ = 39763872.

The previous prime is 79816427. The next prime is 79816489. The reversal of 79816442 is 24461897.

It can be written as a sum of positive squares in 2 ways, for example, as 79727041 + 89401 = 8929^2 + 299^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 79816442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71483 + ... + 72590.

Almost surely, 2^79816442 is an apocalyptic number.

79816442 is a deficient number, since it is larger than the sum of its proper divisors (40341274).

79816442 is a wasteful number, since it uses less digits than its factorization.

79816442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144352.

The product of its digits is 96768, while the sum is 41.

The square root of 79816442 is about 8934.0048130724. The cubic root of 79816442 is about 430.5571325318.

The spelling of 79816442 in words is "seventy-nine million, eight hundred sixteen thousand, four hundred forty-two".