22258968628 has 24 divisors (see below), whose sum is σ = 42364947240. Its totient is φ = 10171651200.

The previous prime is 22258968617. The next prime is 22258968629. The reversal of 22258968628 is 82686985222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 969824164 + 21289144464 = 31142^2 + 145908^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22258968629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2113843 + ... + 2124346.

It is an arithmetic number, because the mean of its divisors is an integer number (1765206135).

Almost surely, 2^22258968628 is an apocalyptic number.

It is an amenable number.

22258968628 is a deficient number, since it is larger than the sum of its proper divisors (20105978612).

22258968628 is a wasteful number, since it uses less digits than its factorization.

22258968628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238307 (or 4238305 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 58.

The spelling of 22258968628 in words is "twenty-two billion, two hundred fifty-eight million, nine hundred sixty-eight thousand, six hundred twenty-eight".