23920900 has 36 divisors (see below), whose sum is σ = 53125072. Its totient is φ = 9344160.

The previous prime is 23920891. The next prime is 23920909. The reversal of 23920900 is 902932.

It is an interprime number because it is at equal distance from previous prime (23920891) and next prime (23920909).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (23920909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1519 + ... + 7081.

Almost surely, 2^23920900 is an apocalyptic number.

23920900 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 23920900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26562536).

23920900 is an abundant number, since it is smaller than the sum of its proper divisors (29204172).

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

23920900 is a wasteful number, since it uses less digits than its factorization.

23920900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5620 (or 5613 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 23920900 is about 4890.8997127318. The cubic root of 23920900 is about 288.1326709985.

The spelling of 23920900 in words is "twenty-three million, nine hundred twenty thousand, nine hundred".