2140045344 has 108 divisors (see below), whose sum is σ = 6146727678. Its totient is φ = 706268160.

The previous prime is 2140045339. The next prime is 2140045363. The reversal of 2140045344 is 4435400412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2078265744 + 61779600 = 45588^2 + 7860^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4942152 + ... + 4942584.

Almost surely, 2^2140045344 is an apocalyptic number.

2140045344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2140045344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3073363839).

2140045344 is an abundant number, since it is smaller than the sum of its proper divisors (4006682334).

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

2140045344 is a wasteful number, since it uses less digits than its factorization.

2140045344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2140045344 is about 46260.6241203034. The cubic root of 2140045344 is about 1288.6678441822.

Adding to 2140045344 its reverse (4435400412), we get a palindrome (6575445756).

The spelling of 2140045344 in words is "two billion, one hundred forty million, forty-five thousand, three hundred forty-four".