23925720 has 192 divisors, whose sum is σ = 90205920. Its totient is φ = 5031936.

The previous prime is 23925719. The next prime is 23925721. The reversal of 23925720 is 2752932.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23925719) and next prime (23925721).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23925721) 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 47 ways as a sum of consecutive naturals, for example, 76284 + ... + 76596.

Almost surely, 2^23925720 is an apocalyptic number.

23925720 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 23925720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45102960).

23925720 is an abundant number, since it is smaller than the sum of its proper divisors (66280200).

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

23925720 is a wasteful number, since it uses less digits than its factorization.

23925720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 23925720 is about 4891.3924397864. The cubic root of 23925720 is about 288.1520223635.

The spelling of 23925720 in words is "twenty-three million, nine hundred twenty-five thousand, seven hundred twenty".