79442 has 16 divisors (see below), whose sum is σ = 136512. Its totient is φ = 34320.

The previous prime is 79433. The next prime is 79451. The reversal of 79442 is 24497.

It is an interprime number because it is at equal distance from previous prime (79433) and next prime (79451).

It is a super-2 number, since 2×79442² = 12622062728, which contains 22 as substring.

It is an unprimeable number.

79442 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428 + ... + 584.

It is an arithmetic number, because the mean of its divisors is an integer number (8532).

2⁷⁹⁴⁴² is an apocalyptic number.

79442 is a deficient number, since it is larger than the sum of its proper divisors (57070).

79442 is a wasteful number, since it uses less digits than its factorization.

79442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193.

The product of its digits is 2016, while the sum is 26.

The square root of 79442 is about 281.8545724305. The cubic root of 79442 is about 42.9882787594.

Subtracting from 79442 its reverse (24497), we obtain a palindrome (54945).

It can be divided in two parts, 7 and 9442, that added together give a palindrome (9449).

The spelling of 79442 in words is "seventy-nine thousand, four hundred forty-two".