23621144 has 16 divisors (see below), whose sum is σ = 44364120. Its totient is φ = 11790720.

The previous prime is 23621113. The next prime is 23621183. The reversal of 23621144 is 44112632.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3392 + ... + 7664.

Almost surely, 2^23621144 is an apocalyptic number.

It is an amenable number.

23621144 is a deficient number, since it is larger than the sum of its proper divisors (20742976).

23621144 is a wasteful number, since it uses less digits than its factorization.

23621144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4970 (or 4966 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 23621144 is about 4860.1588451408. The cubic root of 23621144 is about 286.9240654286.

Adding to 23621144 its reverse (44112632), we get a palindrome (67733776).

The spelling of 23621144 in words is "twenty-three million, six hundred twenty-one thousand, one hundred forty-four".