23445228 has 24 divisors (see below), whose sum is σ = 55604080. Its totient is φ = 7686720.

The previous prime is 23445217. The next prime is 23445229. The reversal of 23445228 is 82254432.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23445195 and 23445204.

It is not an unprimeable number, because it can be changed into a prime (23445229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15283 + ... + 16746.

Almost surely, 2^23445228 is an apocalyptic number.

It is an amenable number.

23445228 is an abundant number, since it is smaller than the sum of its proper divisors (32158852).

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

23445228 is a wasteful number, since it uses less digits than its factorization.

23445228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32097 (or 32095 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 23445228 is about 4842.0272613855. The cubic root of 23445228 is about 286.2100108767.

It can be divided in two parts, 234452 and 28, that multiplied together give a palindrome (6564656).

The spelling of 23445228 in words is "twenty-three million, four hundred forty-five thousand, two hundred twenty-eight".