22075280 has 20 divisors (see below), whose sum is σ = 51325212. Its totient is φ = 8830080.

The previous prime is 22075247. The next prime is 22075301. The reversal of 22075280 is 8257022.

It can be written as a sum of positive squares in 2 ways, for example, as 6330256 + 15745024 = 2516^2 + 3968^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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, 137891 + ... + 138050.

Almost surely, 2^22075280 is an apocalyptic number.

22075280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22075280 is an abundant number, since it is smaller than the sum of its proper divisors (29249932).

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

22075280 is a wasteful number, since it uses less digits than its factorization.

22075280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275954 (or 275948 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 22075280 is about 4698.4337815915. The cubic root of 22075280 is about 280.5231715209.

The spelling of 22075280 in words is "twenty-two million, seventy-five thousand, two hundred eighty".