79499142 has 24 divisors (see below), whose sum is σ = 172461744. Its totient is φ = 26466864.

The previous prime is 79499141. The next prime is 79499177. The reversal of 79499142 is 24199497.

It is a happy number.

It is a super-2 number, since 2×79499142² = 12640227157472328, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79499141) 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, 15448 + ... + 19940.

It is an arithmetic number, because the mean of its divisors is an integer number (7185906).

Almost surely, 2^79499142 is an apocalyptic number.

79499142 is an abundant number, since it is smaller than the sum of its proper divisors (92962602).

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

79499142 is a wasteful number, since it uses less digits than its factorization.

79499142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5484 (or 5481 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 79499142 is about 8916.2291356829. The cubic root of 79499142 is about 429.9858333173.

The spelling of 79499142 in words is "seventy-nine million, four hundred ninety-nine thousand, one hundred forty-two".