22449880 has 32 divisors (see below), whose sum is σ = 51012000. Its totient is φ = 8891136.

The previous prime is 22449871. The next prime is 22449883. The reversal of 22449880 is 8894422.

It is a super-2 number, since 2×22449880² = 1007994224028800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22449883) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1396 + ... + 6844.

It is an arithmetic number, because the mean of its divisors is an integer number (1594125).

Almost surely, 2^22449880 is an apocalyptic number.

22449880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22449880 is an abundant number, since it is smaller than the sum of its proper divisors (28562120).

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

22449880 is a wasteful number, since it uses less digits than its factorization.

22449880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5563 (or 5559 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 22449880 is about 4738.1304329873. The cubic root of 22449880 is about 282.1010318205.

The spelling of 22449880 in words is "twenty-two million, four hundred forty-nine thousand, eight hundred eighty".