42179624 has 8 divisors (see below), whose sum is σ = 79086810. Its totient is φ = 21089808.

The previous prime is 42179597. The next prime is 42179629. The reversal of 42179624 is 42697124.

It can be written as a sum of positive squares in only one way, i.e., 28622500 + 13557124 = 5350^2 + 3682^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42179629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2636219 + ... + 2636234.

Almost surely, 2^42179624 is an apocalyptic number.

It is an amenable number.

42179624 is a deficient number, since it is larger than the sum of its proper divisors (36907186).

42179624 is a wasteful number, since it uses less digits than its factorization.

42179624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5272459 (or 5272455 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 42179624 is about 6494.5842053206. The cubic root of 42179624 is about 348.0974976742.

The spelling of 42179624 in words is "forty-two million, one hundred seventy-nine thousand, six hundred twenty-four".