2140844290 has 16 divisors (see below), whose sum is σ = 4149944568. Its totient is φ = 790465536.

The previous prime is 2140844267. The next prime is 2140844297. The reversal of 2140844290 is 924480412.

It can be written as a sum of positive squares in 4 ways, for example, as 1557959841 + 582884449 = 39471^2 + 24143^2 .

It is not an unprimeable number, because it can be changed into a prime (2140844297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8233887 + ... + 8234146.

Almost surely, 2^2140844290 is an apocalyptic number.

2140844290 is a deficient number, since it is larger than the sum of its proper divisors (2009100278).

2140844290 is a wasteful number, since it uses less digits than its factorization.

2140844290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16468053.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 2140844290 is about 46269.2585849395. The cubic root of 2140844290 is about 1288.8281909282.

The spelling of 2140844290 in words is "two billion, one hundred forty million, eight hundred forty-four thousand, two hundred ninety".