23811472 has 40 divisors (see below), whose sum is σ = 48465152. Its totient is φ = 11318400.

The previous prime is 23811451. The next prime is 23811499. The reversal of 23811472 is 27411832.

It is a self number, because there is not a number n which added to its sum of digits gives 23811472.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29863 + ... + 30649.

Almost surely, 2^23811472 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 23811472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24232576).

23811472 is an abundant number, since it is smaller than the sum of its proper divisors (24653680).

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

23811472 is a wasteful number, since it uses less digits than its factorization.

23811472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 881 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 23811472 is about 4879.6999907781. The cubic root of 23811472 is about 287.6926376252.

The spelling of 23811472 in words is "twenty-three million, eight hundred eleven thousand, four hundred seventy-two".