22434228 has 36 divisors (see below), whose sum is σ = 57919680. Its totient is φ = 7318416.

The previous prime is 22434227. The next prime is 22434239. The reversal of 22434228 is 82243422.

22434228 is a `hidden beast` number, since 2 + 2 + 434 + 228 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22434227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4938 + ... + 8321.

It is an arithmetic number, because the mean of its divisors is an integer number (1608880).

Almost surely, 2^22434228 is an apocalyptic number.

It is an amenable number.

22434228 is an abundant number, since it is smaller than the sum of its proper divisors (35485452).

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

22434228 is a wasteful number, since it uses less digits than its factorization.

22434228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13316 (or 13311 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 22434228 is about 4736.4784386715. The cubic root of 22434228 is about 282.0354565347.

The spelling of 22434228 in words is "twenty-two million, four hundred thirty-four thousand, two hundred twenty-eight".