22930228 has 12 divisors (see below), whose sum is σ = 40304740. Its totient is φ = 11414592.

The previous prime is 22930217. The next prime is 22930247. The reversal of 22930228 is 82203922.

It can be written as a sum of positive squares in 2 ways, for example, as 12027024 + 10903204 = 3468^2 + 3302^2 .

It is a super-2 number, since 2×22930228² = 1051590712263968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22930196 and 22930205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11601 + ... + 13432.

Almost surely, 2^22930228 is an apocalyptic number.

It is an amenable number.

22930228 is a deficient number, since it is larger than the sum of its proper divisors (17374512).

22930228 is a wasteful number, since it uses less digits than its factorization.

22930228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25266 (or 25264 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22930228 is about 4788.5517643647. The cubic root of 22930228 is about 284.0988381764.

The spelling of 22930228 in words is "twenty-two million, nine hundred thirty thousand, two hundred twenty-eight".