23872436 has 48 divisors (see below), whose sum is σ = 52469760. Its totient is φ = 9266400.

The previous prime is 23872421. The next prime is 23872441. The reversal of 23872436 is 63427832.

It is a junction number, because it is equal to n+sod(n) for n = 23872396 and 23872405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11261 + ... + 13211.

It is an arithmetic number, because the mean of its divisors is an integer number (1093120).

Almost surely, 2^23872436 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 23872436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26234880).

23872436 is an abundant number, since it is smaller than the sum of its proper divisors (28597324).

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

23872436 is a wasteful number, since it uses less digits than its factorization.

23872436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004 (or 2002 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 23872436 is about 4885.9426930737. The cubic root of 23872436 is about 287.9379528114.

The spelling of 23872436 in words is "twenty-three million, eight hundred seventy-two thousand, four hundred thirty-six".