22240568 has 16 divisors (see below), whose sum is σ = 47658480. Its totient is φ = 9531648.

The previous prime is 22240553. The next prime is 22240579. The reversal of 22240568 is 86504222.

It is a self number, because there is not a number n which added to its sum of digits gives 22240568.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198521 + ... + 198632.

It is an arithmetic number, because the mean of its divisors is an integer number (2978655).

Almost surely, 2^22240568 is an apocalyptic number.

22240568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22240568 is an abundant number, since it is smaller than the sum of its proper divisors (25417912).

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

22240568 is a wasteful number, since it uses less digits than its factorization.

22240568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397166 (or 397162 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 22240568 is about 4715.9906700501. The cubic root of 22240568 is about 281.2215676278.

The spelling of 22240568 in words is "twenty-two million, two hundred forty thousand, five hundred sixty-eight".