2140332240 has 160 divisors (see below), whose sum is σ = 6905808000. Its totient is φ = 547706880.

The previous prime is 2140332239. The next prime is 2140332247. The reversal of 2140332240 is 422330412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140332247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1258911 + ... + 1260609.

It is an arithmetic number, because the mean of its divisors is an integer number (43161300).

Almost surely, 2^2140332240 is an apocalyptic number.

2140332240 is a gapful number since it is divisible by the number (20) 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 2140332240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3452904000).

2140332240 is an abundant number, since it is smaller than the sum of its proper divisors (4765475760).

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

2140332240 is a wasteful number, since it uses less digits than its factorization.

2140332240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925 (or 1919 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2140332240 is about 46263.7248824606. The cubic root of 2140332240 is about 1288.7254281847.

Adding to 2140332240 its reverse (422330412), we get a palindrome (2562662652).

The spelling of 2140332240 in words is "two billion, one hundred forty million, three hundred thirty-two thousand, two hundred forty".