2140940 has 24 divisors (see below), whose sum is σ = 4529952. Its totient is φ = 849920.

The previous prime is 2140937. The next prime is 2140967. The reversal of 2140940 is 490412.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3020 + ... + 3660.

It is an arithmetic number, because the mean of its divisors is an integer number (188748).

2^2140940 is an apocalyptic number.

2140940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140940 is an abundant number, since it is smaller than the sum of its proper divisors (2389012).

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

2140940 is a wasteful number, since it uses less digits than its factorization.

2140940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2140940 is about 1463.1951339449. The cubic root of 2140940 is about 128.8847397044.

The spelling of 2140940 in words is "two million, one hundred forty thousand, nine hundred forty".