22303032320 has 88 divisors (see below), whose sum is σ = 55346376600. Its totient is φ = 8613527552.

The previous prime is 22303032319. The next prime is 22303032331. The reversal of 22303032320 is 2323030322.

It can be written as a sum of positive squares in 4 ways, for example, as 1961426944 + 20341605376 = 44288^2 + 142624^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22303032292 and 22303032301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73376 + ... + 223584.

Almost surely, 2^22303032320 is an apocalyptic number.

22303032320 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 22303032320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27673188300).

22303032320 is an abundant number, since it is smaller than the sum of its proper divisors (33043344280).

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

22303032320 is a wasteful number, since it uses less digits than its factorization.

22303032320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150263 (or 150245 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

Adding to 22303032320 its reverse (2323030322), we get a palindrome (24626062642).

The spelling of 22303032320 in words is "twenty-two billion, three hundred three million, thirty-two thousand, three hundred twenty".