2040689 has 8 divisors (see below), whose sum is σ = 2341248. Its totient is φ = 1742400.

The previous prime is 2040679. The next prime is 2040719. The reversal of 2040689 is 9860402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2040689 - 2⁸ = 2040433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2040679) 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, 2444 + ... + 3170.

It is an arithmetic number, because the mean of its divisors is an integer number (292656).

2^2040689 is an apocalyptic number.

It is an amenable number.

2040689 is a deficient number, since it is larger than the sum of its proper divisors (300559).

2040689 is an equidigital number, since it uses as much as digits as its factorization.

2040689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2040689 is about 1428.5268635906. The cubic root of 2040689 is about 126.8407908450.

The spelling of 2040689 in words is "two million, forty thousand, six hundred eighty-nine".