23809536 has 60 divisors (see below), whose sum is σ = 68729232. Its totient is φ = 7934976.

The previous prime is 23809517. The next prime is 23809549. The reversal of 23809536 is 63590832.

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 23809536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2025 + ... + 7191.

Almost surely, 2^23809536 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 23809536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34364616).

23809536 is an abundant number, since it is smaller than the sum of its proper divisors (44919696).

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

23809536 is an equidigital number, since it uses as much as digits as its factorization.

23809536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5191 (or 5172 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 23809536 is about 4879.5016138946. The cubic root of 23809536 is about 287.6848404306.

The spelling of 23809536 in words is "twenty-three million, eight hundred nine thousand, five hundred thirty-six".