22947772320 has 576 divisors, whose sum is σ = 93405312000. Its totient is φ = 5065113600.

The previous prime is 22947772319. The next prime is 22947772343. The reversal of 22947772320 is 2327774922.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8346306 + ... + 8349054.

It is an arithmetic number, because the mean of its divisors is an integer number (162162000).

Almost surely, 2^22947772320 is an apocalyptic number.

22947772320 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 22947772320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46702656000).

22947772320 is an abundant number, since it is smaller than the sum of its proper divisors (70457539680).

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

22947772320 is a wasteful number, since it uses less digits than its factorization.

22947772320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829 (or 2818 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The spelling of 22947772320 in words is "twenty-two billion, nine hundred forty-seven million, seven hundred seventy-two thousand, three hundred twenty".