23728884 has 12 divisors (see below), whose sum is σ = 55367424. Its totient is φ = 7909624.

The previous prime is 23728883. The next prime is 23728909. The reversal of 23728884 is 48882732.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×23728884³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23728883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988692 + ... + 988715.

It is an arithmetic number, because the mean of its divisors is an integer number (4613952).

Almost surely, 2^23728884 is an apocalyptic number.

It is an amenable number.

23728884 is an abundant number, since it is smaller than the sum of its proper divisors (31638540).

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

23728884 is a wasteful number, since it uses less digits than its factorization.

23728884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977414 (or 1977412 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 23728884 is about 4871.2302347559. The cubic root of 23728884 is about 287.3596401189.

The spelling of 23728884 in words is "twenty-three million, seven hundred twenty-eight thousand, eight hundred eighty-four".