22598228 has 6 divisors (see below), whose sum is σ = 39546906. Its totient is φ = 11299112.

The previous prime is 22598197. The next prime is 22598249. The reversal of 22598228 is 82289522.

It can be written as a sum of positive squares in only one way, i.e., 22165264 + 432964 = 4708^2 + 658^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22598191 and 22598200.

It is a congruent number.

It is an unprimeable number.

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, 2824775 + ... + 2824782.

It is an arithmetic number, because the mean of its divisors is an integer number (6591151).

Almost surely, 2^22598228 is an apocalyptic number.

It is an amenable number.

22598228 is a deficient number, since it is larger than the sum of its proper divisors (16948678).

22598228 is a wasteful number, since it uses less digits than its factorization.

22598228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5649561 (or 5649559 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 22598228 is about 4753.7593544478. The cubic root of 22598228 is about 282.7210393159.

The spelling of 22598228 in words is "twenty-two million, five hundred ninety-eight thousand, two hundred twenty-eight".