22772316 has 96 divisors (see below), whose sum is σ = 66189312. Its totient is φ = 5944320.

The previous prime is 22772297. The next prime is 22772359. The reversal of 22772316 is 61327722.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52621 + ... + 53051.

It is an arithmetic number, because the mean of its divisors is an integer number (689472).

Almost surely, 2^22772316 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 22772316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33094656).

22772316 is an abundant number, since it is smaller than the sum of its proper divisors (43416996).

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

22772316 is a wasteful number, since it uses less digits than its factorization.

22772316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 497 counting only the distinct ones).

The product of its digits is 7056, while the sum is 30.

The square root of 22772316 is about 4772.0347861264. The cubic root of 22772316 is about 283.4451741477.

The spelling of 22772316 in words is "twenty-two million, seven hundred seventy-two thousand, three hundred sixteen".