2040389 has 16 divisors (see below), whose sum is σ = 2333184. Its totient is φ = 1771200.

The previous prime is 2040377. The next prime is 2040403. The reversal of 2040389 is 9830402.

2040389 = 29³ + 30³ + ... + 54³.

It is a cyclic number.

It is not a de Polignac number, because 2040389 - 2⁸ = 2040133 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24542 + ... + 24624.

It is an arithmetic number, because the mean of its divisors is an integer number (145824).

2^2040389 is an apocalyptic number.

It is an amenable number.

2040389 is a deficient number, since it is larger than the sum of its proper divisors (292795).

2040389 is a wasteful number, since it uses less digits than its factorization.

2040389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2040389 is about 1428.4218564556. The cubic root of 2040389 is about 126.8345749539.

The spelling of 2040389 in words is "two million, forty thousand, three hundred eighty-nine".