23974720 has 168 divisors, whose sum is σ = 72969120. Its totient is φ = 7418880.

The previous prime is 23974711. The next prime is 23974721. The reversal of 23974720 is 2747932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23974721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172411 + ... + 172549.

It is an arithmetic number, because the mean of its divisors is an integer number (434340).

Almost surely, 2^23974720 is an apocalyptic number.

23974720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23974720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36484560).

23974720 is an abundant number, since it is smaller than the sum of its proper divisors (48994400).

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

23974720 is a wasteful number, since it uses less digits than its factorization.

23974720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 23974720 is about 4896.3986765785. The cubic root of 23974720 is about 288.3486005110.

It can be divided in two parts, 2397 and 4720, that added together give a palindrome (7117).

The spelling of 23974720 in words is "twenty-three million, nine hundred seventy-four thousand, seven hundred twenty".