2140231140 has 48 divisors (see below), whose sum is σ = 6658498560. Its totient is φ = 570728160.

The previous prime is 2140231139. The next prime is 2140231141. The reversal of 2140231140 is 411320412.

It is an interprime number because it is at equal distance from previous prime (2140231139) and next prime (2140231141).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2140231141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1981156 + ... + 1982235.

It is an arithmetic number, because the mean of its divisors is an integer number (138718720).

Almost surely, 2^2140231140 is an apocalyptic number.

2140231140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140231140 is an abundant number, since it is smaller than the sum of its proper divisors (4518267420).

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

2140231140 is a wasteful number, since it uses less digits than its factorization.

2140231140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963409 (or 3963401 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2140231140 is about 46262.6322208324. The cubic root of 2140231140 is about 1288.7051366011.

Adding to 2140231140 its reverse (411320412), we get a palindrome (2551551552).

The spelling of 2140231140 in words is "two billion, one hundred forty million, two hundred thirty-one thousand, one hundred forty".