23431152 has 20 divisors (see below), whose sum is σ = 60530600. Its totient is φ = 7810368.

The previous prime is 23431147. The next prime is 23431157. The reversal of 23431152 is 25113432.

It is an interprime number because it is at equal distance from previous prime (23431147) and next prime (23431157).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431157) 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 3 ways as a sum of consecutive naturals, for example, 244027 + ... + 244122.

It is an arithmetic number, because the mean of its divisors is an integer number (3026530).

Almost surely, 2^23431152 is an apocalyptic number.

It is an amenable number.

23431152 is an abundant number, since it is smaller than the sum of its proper divisors (37099448).

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

23431152 is a wasteful number, since it uses less digits than its factorization.

23431152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488160 (or 488154 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 23431152 is about 4840.5735197392. The cubic root of 23431152 is about 286.1527213418.

Adding to 23431152 its reverse (25113432), we get a palindrome (48544584).

The spelling of 23431152 in words is "twenty-three million, four hundred thirty-one thousand, one hundred fifty-two".