2140044 has 24 divisors (see below), whose sum is σ = 5033280. Its totient is φ = 707664.

The previous prime is 2140013. The next prime is 2140049. The reversal of 2140044 is 4400412.

It is not an unprimeable number, because it can be changed into a prime (2140049) 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, 1027 + ... + 2309.

It is an arithmetic number, because the mean of its divisors is an integer number (209720).

2^2140044 is an apocalyptic number.

It is an amenable number.

2140044 is an abundant number, since it is smaller than the sum of its proper divisors (2893236).

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

2140044 is a wasteful number, since it uses less digits than its factorization.

2140044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2140044 is about 1462.8889226459. Note that the first 3 decimals coincide. The cubic root of 2140044 is about 128.8667574411.

Adding to 2140044 its reverse (4400412), we get a palindrome (6540456).

The spelling of 2140044 in words is "two million, one hundred forty thousand, forty-four".