23981264 has 10 divisors (see below), whose sum is σ = 46463730. Its totient is φ = 11990624.

The previous prime is 23981263. The next prime is 23981297. The reversal of 23981264 is 46218932.

It can be written as a sum of positive squares in only one way, i.e., 13690000 + 10291264 = 3700^2 + 3208^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23981263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749399 + ... + 749430.

It is an arithmetic number, because the mean of its divisors is an integer number (4646373).

Almost surely, 2^23981264 is an apocalyptic number.

It is an amenable number.

23981264 is a deficient number, since it is larger than the sum of its proper divisors (22482466).

23981264 is a wasteful number, since it uses less digits than its factorization.

23981264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498837 (or 1498831 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 23981264 is about 4897.0668772235. The cubic root of 23981264 is about 288.3748334428.

The spelling of 23981264 in words is "twenty-three million, nine hundred eighty-one thousand, two hundred sixty-four".