2020389 has 32 divisors (see below), whose sum is σ = 3317760. Its totient is φ = 1068672.

The previous prime is 2020387. The next prime is 2020391. The reversal of 2020389 is 9830202.

It is an interprime number because it is at equal distance from previous prime (2020387) and next prime (2020391).

It is not a de Polignac number, because 2020389 - 2¹ = 2020387 is a prime.

It is a super-2 number, since 2×2020389² = 8163943422642, which contains 22 as substring.

It is a Curzon number.

2020389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22657 + ... + 22745.

It is an arithmetic number, because the mean of its divisors is an integer number (103680).

2^2020389 is an apocalyptic number.

It is an amenable number.

2020389 is a deficient number, since it is larger than the sum of its proper divisors (1297371).

2020389 is a wasteful number, since it uses less digits than its factorization.

2020389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2020389 is about 1421.4038834898. The cubic root of 2020389 is about 126.4188004469.

The spelling of 2020389 in words is "two million, twenty thousand, three hundred eighty-nine".