23885136 has 120 divisors (see below), whose sum is σ = 77298624. Its totient is φ = 6804480.

The previous prime is 23885117. The next prime is 23885143. The reversal of 23885136 is 63158832.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 23885136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26485 + ... + 27371.

Almost surely, 2^23885136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23885136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38649312).

23885136 is an abundant number, since it is smaller than the sum of its proper divisors (53413488).

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

23885136 is a wasteful number, since it uses less digits than its factorization.

23885136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 920 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 23885136 is about 4887.2421671122. The cubic root of 23885136 is about 287.9890042098.

The spelling of 23885136 in words is "twenty-three million, eight hundred eighty-five thousand, one hundred thirty-six".