2113440320 has 56 divisors (see below), whose sum is σ = 5036646264. Its totient is φ = 844701696.

The previous prime is 2113440317. The next prime is 2113440359. The reversal of 2113440320 is 230443112.

It can be written as a sum of positive squares in 4 ways, for example, as 602407936 + 1511032384 = 24544^2 + 38872^2 .

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 = 2113440292 and 2113440301.

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, 655352 + ... + 658568.

Almost surely, 2^2113440320 is an apocalyptic number.

2113440320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113440320 is an abundant number, since it is smaller than the sum of its proper divisors (2923205944).

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

2113440320 is a wasteful number, since it uses less digits than its factorization.

2113440320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287 (or 5277 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2113440320 is about 45972.1689721075. The cubic root of 2113440320 is about 1283.3053245513.

Adding to 2113440320 its reverse (230443112), we get a palindrome (2343883432).

The spelling of 2113440320 in words is "two billion, one hundred thirteen million, four hundred forty thousand, three hundred twenty".