22768780 has 48 divisors (see below), whose sum is σ = 51057216. Its totient is φ = 8499200.

The previous prime is 22768771. The next prime is 22768819. The reversal of 22768780 is 8786722.

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 15 ways as a sum of consecutive naturals, for example, 56580 + ... + 56980.

It is an arithmetic number, because the mean of its divisors is an integer number (1063692).

Almost surely, 2^22768780 is an apocalyptic number.

22768780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22768780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25528608).

22768780 is an abundant number, since it is smaller than the sum of its proper divisors (28288436).

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

22768780 is a wasteful number, since it uses less digits than its factorization.

22768780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 22768780 is about 4771.6642798923. The cubic root of 22768780 is about 283.4305026197.

The spelling of 22768780 in words is "twenty-two million, seven hundred sixty-eight thousand, seven hundred eighty".