2013021344 has 24 divisors (see below), whose sum is σ = 3988388628. Its totient is φ = 1000097280.

The previous prime is 2013021343. The next prime is 2013021347. The reversal of 2013021344 is 4431203102.

It can be written as a sum of positive squares in 2 ways, for example, as 2005248400 + 7772944 = 44780^2 + 2788^2 .

It is not an unprimeable number, because it can be changed into a prime (2013021343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195317 + ... + 205364.

Almost surely, 2^2013021344 is an apocalyptic number.

It is an amenable number.

2013021344 is a deficient number, since it is larger than the sum of its proper divisors (1975367284).

2013021344 is a wasteful number, since it uses less digits than its factorization.

2013021344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400848 (or 400840 counting only the distinct ones).

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

The square root of 2013021344 is about 44866.7064090958. The cubic root of 2013021344 is about 1262.6494480994.

Adding to 2013021344 its reverse (4431203102), we get a palindrome (6444224446).

The spelling of 2013021344 in words is "two billion, thirteen million, twenty-one thousand, three hundred forty-four".