23405250 has 64 divisors (see below), whose sum is σ = 63752832. Its totient is φ = 5672000.

The previous prime is 23405203. The next prime is 23405257. The reversal of 23405250 is 5250432.

It is not an unprimeable number, because it can be changed into a prime (23405257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6832 + ... + 9668.

It is an arithmetic number, because the mean of its divisors is an integer number (996138).

Almost surely, 2^23405250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23405250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31876416).

23405250 is an abundant number, since it is smaller than the sum of its proper divisors (40347582).

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

23405250 is a wasteful number, since it uses less digits than its factorization.

23405250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868 (or 2858 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 23405250 is about 4837.8972705092. The cubic root of 23405250 is about 286.0472398209.

Adding to 23405250 its reverse (5250432), we get a palindrome (28655682).

The spelling of 23405250 in words is "twenty-three million, four hundred five thousand, two hundred fifty".