22572280 has 16 divisors (see below), whose sum is σ = 50787720. Its totient is φ = 9028896.

The previous prime is 22572271. The next prime is 22572287. The reversal of 22572280 is 8227522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22572287) 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, 282114 + ... + 282193.

Almost surely, 2^22572280 is an apocalyptic number.

22572280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22572280 is an abundant number, since it is smaller than the sum of its proper divisors (28215440).

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

22572280 is a wasteful number, since it uses less digits than its factorization.

22572280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564318 (or 564314 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 22572280 is about 4751.0293621488. The cubic root of 22572280 is about 282.6127881270.

The spelling of 22572280 in words is "twenty-two million, five hundred seventy-two thousand, two hundred eighty".