2140844 has 24 divisors (see below), whose sum is σ = 4178160. Its totient is φ = 953856.

The previous prime is 2140843. The next prime is 2140847. The reversal of 2140844 is 4480412.

2140844 = T₈₆ + T₈₇ + ... + T₂₃₇.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140843) 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, 464 + ... + 2120.

It is an arithmetic number, because the mean of its divisors is an integer number (174090).

2^2140844 is an apocalyptic number.

It is an amenable number.

2140844 is a deficient number, since it is larger than the sum of its proper divisors (2037316).

2140844 is a wasteful number, since it uses less digits than its factorization.

2140844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697 (or 1695 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 2140844 is about 1463.1623286567. The cubic root of 2140844 is about 128.8828132733.

The spelling of 2140844 in words is "two million, one hundred forty thousand, eight hundred forty-four".