20320412244 has 48 divisors (see below), whose sum is σ = 51733032960. Its totient is φ = 6156707040.

The previous prime is 20320412243. The next prime is 20320412257. The reversal of 20320412244 is 44221402302.

It is a super-2 number, since 2×20320412244² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320412243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1556247 + ... + 1569249.

It is an arithmetic number, because the mean of its divisors is an integer number (1077771520).

Almost surely, 2^20320412244 is an apocalyptic number.

It is an amenable number.

20320412244 is an abundant number, since it is smaller than the sum of its proper divisors (31412620716).

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

20320412244 is a wasteful number, since it uses less digits than its factorization.

20320412244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24860 (or 24858 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20320412244 its reverse (44221402302), we get a palindrome (64541814546).

The spelling of 20320412244 in words is "twenty billion, three hundred twenty million, four hundred twelve thousand, two hundred forty-four".