2343721140 has 36 divisors (see below), whose sum is σ = 7109288004. Its totient is φ = 624992256.

The previous prime is 2343721139. The next prime is 2343721141. The reversal of 2343721140 is 411273432.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2343721139) and next prime (2343721141).

It can be written as a sum of positive squares in 2 ways, for example, as 562543524 + 1781177616 = 23718^2 + 42204^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2343721141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6510157 + ... + 6510516.

Almost surely, 2^2343721140 is an apocalyptic number.

2343721140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2343721140 is an abundant number, since it is smaller than the sum of its proper divisors (4765566864).

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

2343721140 is a wasteful number, since it uses less digits than its factorization.

2343721140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13020688 (or 13020683 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 2343721140 is about 48411.9937618768. The cubic root of 2343721140 is about 1328.3177593090.

Adding to 2343721140 its reverse (411273432), we get a palindrome (2754994572).

The spelling of 2343721140 in words is "two billion, three hundred forty-three million, seven hundred twenty-one thousand, one hundred forty".