23921250 has 40 divisors (see below), whose sum is σ = 59793360. Its totient is φ = 6378000.

The previous prime is 23921231. The next prime is 23921251. The reversal of 23921250 is 5212932.

It is a self number, because there is not a number n which added to its sum of digits gives 23921250.

It is not an unprimeable number, because it can be changed into a prime (23921251) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 561 + ... + 6939.

It is an arithmetic number, because the mean of its divisors is an integer number (1494834).

Almost surely, 2^23921250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23921250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29896680).

23921250 is an abundant number, since it is smaller than the sum of its proper divisors (35872110).

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

23921250 is an equidigital number, since it uses as much as digits as its factorization.

23921250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404 (or 6389 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 23921250 is about 4890.9354933387. The cubic root of 23921250 is about 288.1340762681.

The spelling of 23921250 in words is "twenty-three million, nine hundred twenty-one thousand, two hundred fifty".