22306880 has 28 divisors (see below), whose sum is σ = 53119020. Its totient is φ = 8922624.

The previous prime is 22306807. The next prime is 22306883. The reversal of 22306880 is 8860322.

It can be written as a sum of positive squares in 2 ways, for example, as 2876416 + 19430464 = 1696^2 + 4408^2 .

It is not an unprimeable number, because it can be changed into a prime (22306883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34535 + ... + 35174.

Almost surely, 2^22306880 is an apocalyptic number.

22306880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22306880 is an abundant number, since it is smaller than the sum of its proper divisors (30812140).

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

22306880 is an equidigital number, since it uses as much as digits as its factorization.

22306880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69726 (or 69716 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 22306880 is about 4723.0159855753. The cubic root of 22306880 is about 281.5007850378.

The spelling of 22306880 in words is "twenty-two million, three hundred six thousand, eight hundred eighty".