23164642 has 16 divisors (see below), whose sum is σ = 36892800. Its totient is φ = 10870848.

The previous prime is 23164637. The next prime is 23164643. The reversal of 23164642 is 24646132.

It is a self number, because there is not a number n which added to its sum of digits gives 23164642.

It is not an unprimeable number, because it can be changed into a prime (23164643) 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 7 ways as a sum of consecutive naturals, for example, 15859 + ... + 17257.

It is an arithmetic number, because the mean of its divisors is an integer number (2305800).

Almost surely, 2^23164642 is an apocalyptic number.

23164642 is a deficient number, since it is larger than the sum of its proper divisors (13728158).

23164642 is a wasteful number, since it uses less digits than its factorization.

23164642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905.

The product of its digits is 6912, while the sum is 28.

The square root of 23164642 is about 4812.9660293835. The cubic root of 23164642 is about 285.0636648579.

The spelling of 23164642 in words is "twenty-three million, one hundred sixty-four thousand, six hundred forty-two".