22746280 has 16 divisors (see below), whose sum is σ = 51179220. Its totient is φ = 9098496.

The previous prime is 22746277. The next prime is 22746301. The reversal of 22746280 is 8264722.

It can be written as a sum of positive squares in 2 ways, for example, as 21734244 + 1012036 = 4662^2 + 1006^2 .

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, 284289 + ... + 284368.

Almost surely, 2^22746280 is an apocalyptic number.

22746280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22746280 is an abundant number, since it is smaller than the sum of its proper divisors (28432940).

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

22746280 is a wasteful number, since it uses less digits than its factorization.

22746280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568668 (or 568664 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 22746280 is about 4769.3060291829. The cubic root of 22746280 is about 283.3371102918.

The spelling of 22746280 in words is "twenty-two million, seven hundred forty-six thousand, two hundred eighty".