22722434280 has 448 divisors, whose sum is σ = 94353356160. Its totient is φ = 4793624064.

The previous prime is 22722434269. The next prime is 22722434299. The reversal of 22722434280 is 8243422722.

22722434280 is a `hidden beast` number, since 2 + 2 + 7 + 224 + 3 + 428 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2649279 + ... + 2657841.

It is an arithmetic number, because the mean of its divisors is an integer number (210610170).

Almost surely, 2^22722434280 is an apocalyptic number.

22722434280 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 22722434280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47176678080).

22722434280 is an abundant number, since it is smaller than the sum of its proper divisors (71630921880).

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

22722434280 is a wasteful number, since it uses less digits than its factorization.

22722434280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8612 (or 8593 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

The spelling of 22722434280 in words is "twenty-two billion, seven hundred twenty-two million, four hundred thirty-four thousand, two hundred eighty".