2140206844 has 12 divisors (see below), whose sum is σ = 3874512600. Its totient is φ = 1033203248.

The previous prime is 2140206841. The next prime is 2140206863. The reversal of 2140206844 is 4486020412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140206841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9224914 + ... + 9225145.

It is an arithmetic number, because the mean of its divisors is an integer number (322876050).

Almost surely, 2^2140206844 is an apocalyptic number.

It is an amenable number.

2140206844 is a deficient number, since it is larger than the sum of its proper divisors (1734305756).

2140206844 is a wasteful number, since it uses less digits than its factorization.

2140206844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18450092 (or 18450090 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 2140206844 is about 46262.3696323481. The cubic root of 2140206844 is about 1288.7002601031.

The spelling of 2140206844 in words is "two billion, one hundred forty million, two hundred six thousand, eight hundred forty-four".