2140012242 has 24 divisors (see below), whose sum is σ = 4640962716. Its totient is φ = 712680576.

The previous prime is 2140012211. The next prime is 2140012247. The reversal of 2140012242 is 2422100412.

2140012242 is a `hidden beast` number, since 21 + 400 + 1 + 2 + 242 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1727150481 + 412861761 = 41559^2 + 20319^2 .

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 (2140012247) 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, 34443 + ... + 73934.

Almost surely, 2^2140012242 is an apocalyptic number.

2140012242 is an abundant number, since it is smaller than the sum of its proper divisors (2500950474).

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

2140012242 is a wasteful number, since it uses less digits than its factorization.

2140012242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109482 (or 109479 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2140012242 is about 46260.2663416457. The cubic root of 2140012242 is about 1288.6611998210.

Adding to 2140012242 its reverse (2422100412), we get a palindrome (4562112654).

The spelling of 2140012242 in words is "two billion, one hundred forty million, twelve thousand, two hundred forty-two".