22772608 has 32 divisors (see below), whose sum is σ = 45900000. Its totient is φ = 11252736.

The previous prime is 22772591. The next prime is 22772641. The reversal of 22772608 is 80627722.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 10393 + ... + 12391.

It is an arithmetic number, because the mean of its divisors is an integer number (1434375).

Almost surely, 2^22772608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22772608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22950000).

22772608 is an abundant number, since it is smaller than the sum of its proper divisors (23127392).

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

22772608 is an equidigital number, since it uses as much as digits as its factorization.

22772608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102 (or 2090 counting only the distinct ones).

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

The square root of 22772608 is about 4772.0653809436. The cubic root of 22772608 is about 283.4463856426.

The spelling of 22772608 in words is "twenty-two million, seven hundred seventy-two thousand, six hundred eight".