22756040 has 32 divisors (see below), whose sum is σ = 51365880. Its totient is φ = 9073152.

The previous prime is 22756031. The next prime is 22756057. The reversal of 22756040 is 4065722.

It can be written as a sum of positive squares in 4 ways, for example, as 21883684 + 872356 = 4678^2 + 934^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15164 + ... + 16596.

Almost surely, 2^22756040 is an apocalyptic number.

22756040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22756040 is an abundant number, since it is smaller than the sum of its proper divisors (28609840).

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

22756040 is a wasteful number, since it uses less digits than its factorization.

22756040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 22756040 is about 4770.3291291063. The cubic root of 22756040 is about 283.3776293682.

The spelling of 22756040 in words is "twenty-two million, seven hundred fifty-six thousand, forty".