2140545344 has 112 divisors (see below), whose sum is σ = 5237975808. Its totient is φ = 846962688.

The previous prime is 2140545331. The next prime is 2140545367. The reversal of 2140545344 is 4435450412.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 2140545344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400997 + ... + 406299.

Almost surely, 2^2140545344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2140545344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2618987904).

2140545344 is an abundant number, since it is smaller than the sum of its proper divisors (3097430464).

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

2140545344 is a wasteful number, since it uses less digits than its factorization.

2140545344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392 (or 5382 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 2140545344 is about 46266.0279686943. The cubic root of 2140545344 is about 1288.7681977798.

Adding to 2140545344 its reverse (4435450412), we get a palindrome (6575995756).

The spelling of 2140545344 in words is "two billion, one hundred forty million, five hundred forty-five thousand, three hundred forty-four".