1820053339 has 24 divisors (see below), whose sum is σ = 2075352720. Its totient is φ = 1586475072.

The previous prime is 1820053331. The next prime is 1820053349. The reversal of 1820053339 is 9333500281.

It is not a de Polignac number, because 1820053339 - 2³ = 1820053331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1820053331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2566717 + ... + 2567425.

It is an arithmetic number, because the mean of its divisors is an integer number (86473030).

Almost surely, 2^1820053339 is an apocalyptic number.

1820053339 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1820053339 is a deficient number, since it is larger than the sum of its proper divisors (255299381).

1820053339 is a wasteful number, since it uses less digits than its factorization.

1820053339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 1820053339 is about 42662.0831535451. The cubic root of 1820053339 is about 1220.9410769453.

The spelling of 1820053339 in words is "one billion, eight hundred twenty million, fifty-three thousand, three hundred thirty-nine".