23421642 has 16 divisors (see below), whose sum is σ = 49308960. Its totient is φ = 7396272.

The previous prime is 23421641. The next prime is 23421649. The reversal of 23421642 is 24612432.

It is not an unprimeable number, because it can be changed into a prime (23421641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102613 + ... + 102840.

It is an arithmetic number, because the mean of its divisors is an integer number (3081810).

Almost surely, 2^23421642 is an apocalyptic number.

23421642 is an abundant number, since it is smaller than the sum of its proper divisors (25887318).

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

23421642 is a wasteful number, since it uses less digits than its factorization.

23421642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205477.

The product of its digits is 2304, while the sum is 24.

The square root of 23421642 is about 4839.5910984297. The cubic root of 23421642 is about 286.1140025081.

The spelling of 23421642 in words is "twenty-three million, four hundred twenty-one thousand, six hundred forty-two".