22249880 has 32 divisors (see below), whose sum is σ = 51287040. Its totient is φ = 8682240.

The previous prime is 22249853. The next prime is 22249891. The reversal of 22249880 is 8894222.

It is a self number, because there is not a number n which added to its sum of digits gives 22249880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5144 + ... + 8423.

It is an arithmetic number, because the mean of its divisors is an integer number (1602720).

Almost surely, 2^22249880 is an apocalyptic number.

22249880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22249880 is an abundant number, since it is smaller than the sum of its proper divisors (29037160).

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

22249880 is a wasteful number, since it uses less digits than its factorization.

22249880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13619 (or 13615 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 22249880 is about 4716.9778460366. The cubic root of 22249880 is about 281.2608107779.

The spelling of 22249880 in words is "twenty-two million, two hundred forty-nine thousand, eight hundred eighty".