79742942 has 8 divisors (see below), whose sum is σ = 119655336. Its totient is φ = 39857832.

The previous prime is 79742933. The next prime is 79742947. The reversal of 79742942 is 24924797.

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

It is a junction number, because it is equal to n+sod(n) for n = 79742893 and 79742902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79742947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3788 + ... + 13184.

It is an arithmetic number, because the mean of its divisors is an integer number (14956917).

Almost surely, 2^79742942 is an apocalyptic number.

79742942 is a deficient number, since it is larger than the sum of its proper divisors (39912394).

79742942 is a wasteful number, since it uses less digits than its factorization.

79742942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13642.

The product of its digits is 254016, while the sum is 44.

The square root of 79742942 is about 8929.8903688679. The cubic root of 79742942 is about 430.4249305807.

The spelling of 79742942 in words is "seventy-nine million, seven hundred forty-two thousand, nine hundred forty-two".