23179642 has 12 divisors (see below), whose sum is σ = 36012366. Its totient is φ = 11189360.

The previous prime is 23179631. The next prime is 23179643. The reversal of 23179642 is 24697132.

It can be written as a sum of positive squares in 3 ways, for example, as 20711601 + 2468041 = 4551^2 + 1571^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23179598 and 23179607.

It is not an unprimeable number, because it can be changed into a prime (23179643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5209 + ... + 8572.

Almost surely, 2^23179642 is an apocalyptic number.

23179642 is a deficient number, since it is larger than the sum of its proper divisors (12832724).

23179642 is a wasteful number, since it uses less digits than its factorization.

23179642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13841 (or 13812 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 23179642 is about 4814.5240678597. The cubic root of 23179642 is about 285.1251814911.

The spelling of 23179642 in words is "twenty-three million, one hundred seventy-nine thousand, six hundred forty-two".