79393042 has 4 divisors (see below), whose sum is σ = 119089566. Its totient is φ = 39696520.

The previous prime is 79393031. The next prime is 79393063. The reversal of 79393042 is 24039397.

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., 68244121 + 11148921 = 8261^2 + 3339^2 .

It is a junction number, because it is equal to n+sod(n) for n = 79392992 and 79393010.

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 as a sum of consecutive naturals, namely, 19848259 + ... + 19848262.

Almost surely, 2^79393042 is an apocalyptic number.

79393042 is a deficient number, since it is larger than the sum of its proper divisors (39696524).

79393042 is a wasteful number, since it uses less digits than its factorization.

79393042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39696523.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 79393042 is about 8910.2773245281. The cubic root of 79393042 is about 429.7944609897.

The spelling of 79393042 in words is "seventy-nine million, three hundred ninety-three thousand, forty-two".