79405942 has 32 divisors (see below), whose sum is σ = 153298944. Its totient is φ = 29937600.

The previous prime is 79405933. The next prime is 79405943. The reversal of 79405942 is 24950497.

It is a junction number, because it is equal to n+sod(n) for n = 79405895 and 79405904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79405943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3543 + ... + 13090.

It is an arithmetic number, because the mean of its divisors is an integer number (4790592).

Almost surely, 2^79405942 is an apocalyptic number.

79405942 is a deficient number, since it is larger than the sum of its proper divisors (73893002).

79405942 is a wasteful number, since it uses less digits than its factorization.

79405942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16684.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 79405942 is about 8911.0011783189. The cubic root of 79405942 is about 429.8177377914.

Subtracting from 79405942 its reverse (24950497), we obtain a palindrome (54455445).

The spelling of 79405942 in words is "seventy-nine million, four hundred five thousand, nine hundred forty-two".