2140042304 has 28 divisors (see below), whose sum is σ = 4304829084. Its totient is φ = 1055361024.

The previous prime is 2140042279. The next prime is 2140042357. The reversal of 2140042304 is 4032400412.

It can be written as a sum of positive squares in 2 ways, for example, as 1548579904 + 591462400 = 39352^2 + 24320^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224357 + ... + 233700.

Almost surely, 2^2140042304 is an apocalyptic number.

It is an amenable number.

2140042304 is an abundant number, since it is smaller than the sum of its proper divisors (2164786780).

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

2140042304 is an equidigital number, since it uses as much as digits as its factorization.

2140042304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458142 (or 458132 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2140042304 is about 46260.5912629746. The cubic root of 2140042304 is about 1288.6672339845.

Adding to 2140042304 its reverse (4032400412), we get a palindrome (6172442716).

The spelling of 2140042304 in words is "two billion, one hundred forty million, forty-two thousand, three hundred four".