22276780 has 24 divisors (see below), whose sum is σ = 46877040. Its totient is φ = 8892480.

The previous prime is 22276769. The next prime is 22276781. The reversal of 22276780 is 8767222.

It is not an unprimeable number, because it can be changed into a prime (22276781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13395 + ... + 14965.

It is an arithmetic number, because the mean of its divisors is an integer number (1953210).

Almost surely, 2^22276780 is an apocalyptic number.

22276780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22276780 is an abundant number, since it is smaller than the sum of its proper divisors (24600260).

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

22276780 is a wasteful number, since it uses less digits than its factorization.

22276780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289 (or 2287 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 22276780 is about 4719.8283867107. The cubic root of 22276780 is about 281.3741127942.

The spelling of 22276780 in words is "twenty-two million, two hundred seventy-six thousand, seven hundred eighty".