23813228 has 12 divisors (see below), whose sum is σ = 42642600. Its totient is φ = 11629632.

The previous prime is 23813227. The next prime is 23813233. The reversal of 23813228 is 82231832.

It is a self number, because there is not a number n which added to its sum of digits gives 23813228.

It is not an unprimeable number, because it can be changed into a prime (23813221) 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, 69053 + ... + 69396.

It is an arithmetic number, because the mean of its divisors is an integer number (3553550).

Almost surely, 2^23813228 is an apocalyptic number.

It is an amenable number.

23813228 is a deficient number, since it is larger than the sum of its proper divisors (18829372).

23813228 is a wasteful number, since it uses less digits than its factorization.

23813228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138496 (or 138494 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 23813228 is about 4879.8799165553. The cubic root of 23813228 is about 287.6997095085.

The spelling of 23813228 in words is "twenty-three million, eight hundred thirteen thousand, two hundred twenty-eight".