23980644 has 24 divisors (see below), whose sum is σ = 62172320. Its totient is φ = 7993512.

The previous prime is 23980643. The next prime is 23980661. The reversal of 23980644 is 44608932.

It is a happy number.

23980644 is a `hidden beast` number, since 2 + 3 + 9 + 8 + 0 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23980599 and 23980608.

It is not an unprimeable number, because it can be changed into a prime (23980643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110914 + ... + 111129.

Almost surely, 2^23980644 is an apocalyptic number.

It is an amenable number.

23980644 is an abundant number, since it is smaller than the sum of its proper divisors (38191676).

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

23980644 is a wasteful number, since it uses less digits than its factorization.

23980644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222056 (or 222048 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 23980644 is about 4897.0035736152. The cubic root of 23980644 is about 288.3723482536.

The spelling of 23980644 in words is "twenty-three million, nine hundred eighty thousand, six hundred forty-four".