22288640000 has 240 divisors, whose sum is σ = 60791290560. Its totient is φ = 8099840000.

The previous prime is 22288639993. The next prime is 22288640009. The reversal of 22288640000 is 4688222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (22288640009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14079209 + ... + 14080791.

It is an arithmetic number, because the mean of its divisors is an integer number (253297044).

Almost surely, 2^22288640000 is an apocalyptic number.

22288640000 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 22288640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30395645280).

22288640000 is an abundant number, since it is smaller than the sum of its proper divisors (38502650560).

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

22288640000 is an equidigital number, since it uses as much as digits as its factorization.

22288640000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636 (or 1601 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The spelling of 22288640000 in words is "twenty-two billion, two hundred eighty-eight million, six hundred forty thousand".