23641228 has 48 divisors (see below), whose sum is σ = 46483360. Its totient is φ = 10450944.

The previous prime is 23641223. The next prime is 23641229. The reversal of 23641228 is 82214632.

It is a super-2 number, since 2×23641228² = 1117815322695968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23641196 and 23641205.

It is not an unprimeable number, because it can be changed into a prime (23641223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216838 + ... + 216946.

Almost surely, 2^23641228 is an apocalyptic number.

It is an amenable number.

23641228 is a deficient number, since it is larger than the sum of its proper divisors (22842132).

23641228 is a wasteful number, since it uses less digits than its factorization.

23641228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 264 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 23641228 is about 4862.2245937431. The cubic root of 23641228 is about 287.0053619495.

The spelling of 23641228 in words is "twenty-three million, six hundred forty-one thousand, two hundred twenty-eight".