22988729232 has 320 divisors, whose sum is σ = 77049036800. Its totient is φ = 6507672192.

The previous prime is 22988729221. The next prime is 22988729237. The reversal of 22988729232 is 23292788922.

It is a happy number.

It is a super-2 number, since 2×22988729232² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is not an unprimeable number, because it can be changed into a prime (22988729237) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31107519 + ... + 31108257.

It is an arithmetic number, because the mean of its divisors is an integer number (240778240).

Almost surely, 2^22988729232 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 22988729232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38524518400).

22988729232 is an abundant number, since it is smaller than the sum of its proper divisors (54060307568).

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

22988729232 is an equidigital number, since it uses as much as digits as its factorization.

22988729232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 878 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 22988729232 in words is "twenty-two billion, nine hundred eighty-eight million, seven hundred twenty-nine thousand, two hundred thirty-two".