79022842 has 4 divisors (see below), whose sum is σ = 118534266. Its totient is φ = 39511420.

The previous prime is 79022819. The next prime is 79022849. The reversal of 79022842 is 24822097.

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., 78517321 + 505521 = 8861^2 + 711^2 .

It is a junction number, because it is equal to n+sod(n) for n = 79022798 and 79022807.

It is not an unprimeable number, because it can be changed into a prime (79022849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19755709 + ... + 19755712.

Almost surely, 2^79022842 is an apocalyptic number.

79022842 is a deficient number, since it is larger than the sum of its proper divisors (39511424).

79022842 is a wasteful number, since it uses less digits than its factorization.

79022842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39511423.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 79022842 is about 8889.4792873374. The cubic root of 79022842 is about 429.1253937289.

It can be divided in two parts, 790 and 22842, that added together give a palindrome (23632).

The spelling of 79022842 in words is "seventy-nine million, twenty-two thousand, eight hundred forty-two".