22275620 has 12 divisors (see below), whose sum is σ = 46778844. Its totient is φ = 8910240.

The previous prime is 22275607. The next prime is 22275637. The reversal of 22275620 is 2657222.

It can be written as a sum of positive squares in 2 ways, for example, as 9084196 + 13191424 = 3014^2 + 3632^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22275620.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556871 + ... + 556910.

It is an arithmetic number, because the mean of its divisors is an integer number (3898237).

Almost surely, 2^22275620 is an apocalyptic number.

22275620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22275620 is an abundant number, since it is smaller than the sum of its proper divisors (24503224).

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

22275620 is a wasteful number, since it uses less digits than its factorization.

22275620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113790 (or 1113788 counting only the distinct ones).

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

The square root of 22275620 is about 4719.7054992870. The cubic root of 22275620 is about 281.3692287904.

The spelling of 22275620 in words is "twenty-two million, two hundred seventy-five thousand, six hundred twenty".