79311942 has 24 divisors (see below), whose sum is σ = 176488416. Its totient is φ = 25722576.

The previous prime is 79311929. The next prime is 79311949. The reversal of 79311942 is 24911397.

It is a super-2 number, since 2×79311942² = 12580768287622728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79311897 and 79311906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79311949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58878 + ... + 60209.

It is an arithmetic number, because the mean of its divisors is an integer number (7353684).

Almost surely, 2^79311942 is an apocalyptic number.

79311942 is an abundant number, since it is smaller than the sum of its proper divisors (97176474).

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

79311942 is a wasteful number, since it uses less digits than its factorization.

79311942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119132 (or 119129 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 79311942 is about 8905.7252371719. The cubic root of 79311942 is about 429.6480661032.

The spelling of 79311942 in words is "seventy-nine million, three hundred eleven thousand, nine hundred forty-two".