23621142 has 32 divisors (see below), whose sum is σ = 49950720. Its totient is φ = 7426080.

The previous prime is 23621113. The next prime is 23621183. The reversal of 23621142 is 24112632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43392 + ... + 43932.

It is an arithmetic number, because the mean of its divisors is an integer number (1560960).

Almost surely, 2^23621142 is an apocalyptic number.

23621142 is an abundant number, since it is smaller than the sum of its proper divisors (26329578).

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

23621142 is a wasteful number, since it uses less digits than its factorization.

23621142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its digits is 576, while the sum is 21.

The square root of 23621142 is about 4860.1586393862. The cubic root of 23621142 is about 286.9240573306.

Adding to 23621142 its reverse (24112632), we get a palindrome (47733774).

The spelling of 23621142 in words is "twenty-three million, six hundred twenty-one thousand, one hundred forty-two".