20440010322 has 24 divisors (see below), whose sum is σ = 44289670464. Its totient is φ = 6812878104.

The previous prime is 20440010309. The next prime is 20440010329. The reversal of 20440010322 is 22301004402.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20440010295 and 20440010304.

It is not an unprimeable number, because it can be changed into a prime (20440010329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335163 + ... + 391425.

It is an arithmetic number, because the mean of its divisors is an integer number (1845402936).

Almost surely, 2^20440010322 is an apocalyptic number.

20440010322 is an abundant number, since it is smaller than the sum of its proper divisors (23849660142).

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

20440010322 is a wasteful number, since it uses less digits than its factorization.

20440010322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76454 (or 76451 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20440010322 its reverse (22301004402), we get a palindrome (42741014724).

The spelling of 20440010322 in words is "twenty billion, four hundred forty million, ten thousand, three hundred twenty-two".