23238664 has 16 divisors (see below), whose sum is σ = 44750700. Its totient is φ = 11305152.

The previous prime is 23238647. The next prime is 23238667. The reversal of 23238664 is 46683232.

It can be written as a sum of positive squares in 2 ways, for example, as 17994564 + 5244100 = 4242^2 + 2290^2 .

It is not an unprimeable number, because it can be changed into a prime (23238667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38959 + ... + 39550.

Almost surely, 2^23238664 is an apocalyptic number.

It is an amenable number.

23238664 is a deficient number, since it is larger than the sum of its proper divisors (21512036).

23238664 is a wasteful number, since it uses less digits than its factorization.

23238664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78552 (or 78548 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 23238664 is about 4820.6497487372. The cubic root of 23238664 is about 285.3669798057.

The spelling of 23238664 in words is "twenty-three million, two hundred thirty-eight thousand, six hundred sixty-four".