22559428 has 6 divisors (see below), whose sum is σ = 39479006. Its totient is φ = 11279712.

The previous prime is 22559423. The next prime is 22559429. The reversal of 22559428 is 82495522.

It can be written as a sum of positive squares in only one way, i.e., 22297284 + 262144 = 4722^2 + 512^2 .

It is not an unprimeable number, because it can be changed into a prime (22559423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2819925 + ... + 2819932.

Almost surely, 2^22559428 is an apocalyptic number.

It is an amenable number.

22559428 is a deficient number, since it is larger than the sum of its proper divisors (16919578).

22559428 is a wasteful number, since it uses less digits than its factorization.

22559428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5639861 (or 5639859 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 22559428 is about 4749.6766205711. The cubic root of 22559428 is about 282.5591407755.

The spelling of 22559428 in words is "twenty-two million, five hundred fifty-nine thousand, four hundred twenty-eight".