22451080 has 16 divisors (see below), whose sum is σ = 50515020. Its totient is φ = 8980416.

The previous prime is 22451071. The next prime is 22451081. The reversal of 22451080 is 8015422.

It can be written as a sum of positive squares in 2 ways, for example, as 21288996 + 1162084 = 4614^2 + 1078^2 .

It is not an unprimeable number, because it can be changed into a prime (22451081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280599 + ... + 280678.

Almost surely, 2^22451080 is an apocalyptic number.

22451080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22451080 is an abundant number, since it is smaller than the sum of its proper divisors (28063940).

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

22451080 is a wasteful number, since it uses less digits than its factorization.

22451080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561288 (or 561284 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 22451080 is about 4738.2570635203. The cubic root of 22451080 is about 282.1060580568.

The spelling of 22451080 in words is "twenty-two million, four hundred fifty-one thousand, eighty".