23430228 has 12 divisors (see below), whose sum is σ = 54670560. Its totient is φ = 7810072.

The previous prime is 23430223. The next prime is 23430263. The reversal of 23430228 is 82203432.

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

It is a junction number, because it is equal to n+sod(n) for n = 23430198 and 23430207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430221) 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, 976248 + ... + 976271.

It is an arithmetic number, because the mean of its divisors is an integer number (4555880).

Almost surely, 2^23430228 is an apocalyptic number.

It is an amenable number.

23430228 is an abundant number, since it is smaller than the sum of its proper divisors (31240332).

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

23430228 is a wasteful number, since it uses less digits than its factorization.

23430228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952526 (or 1952524 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 23430228 is about 4840.4780755624. The cubic root of 23430228 is about 286.1489598452.

The spelling of 23430228 in words is "twenty-three million, four hundred thirty thousand, two hundred twenty-eight".