20440041320 has 32 divisors (see below), whose sum is σ = 46070687520. Its totient is φ = 8161688640.

The previous prime is 20440041317. The next prime is 20440041343. The reversal of 20440041320 is 2314004402.

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 = 20440041292 and 20440041301.

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, 424622 + ... + 470301.

It is an arithmetic number, because the mean of its divisors is an integer number (1439708985).

Almost surely, 2^20440041320 is an apocalyptic number.

20440041320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20440041320 is an abundant number, since it is smaller than the sum of its proper divisors (25630646200).

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

20440041320 is a wasteful number, since it uses less digits than its factorization.

20440041320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895505 (or 895501 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20440041320 its reverse (2314004402), we get a palindrome (22754045722).

The spelling of 20440041320 in words is "twenty billion, four hundred forty million, forty-one thousand, three hundred twenty".