22494880 has 24 divisors (see below), whose sum is σ = 53144532. Its totient is φ = 8997888.

The previous prime is 22494869. The next prime is 22494881. The reversal of 22494880 is 8849422.

22494880 = T₃₃ + T₃₄ + ... + T₅₁₂.

It can be written as a sum of positive squares in 2 ways, for example, as 21641104 + 853776 = 4652^2 + 924^2 .

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 not an unprimeable number, because it can be changed into a prime (22494881) 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 3 ways as a sum of consecutive naturals, for example, 70137 + ... + 70456.

Almost surely, 2^22494880 is an apocalyptic number.

22494880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22494880 is an abundant number, since it is smaller than the sum of its proper divisors (30649652).

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

22494880 is a wasteful number, since it uses less digits than its factorization.

22494880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140608 (or 140600 counting only the distinct ones).

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

The square root of 22494880 is about 4742.8767641591. The cubic root of 22494880 is about 282.2893932422.

The spelling of 22494880 in words is "twenty-two million, four hundred ninety-four thousand, eight hundred eighty".