1839020073 has 16 divisors (see below), whose sum is σ = 2697051072. Its totient is φ = 1114555200.

The previous prime is 1839020063. The next prime is 1839020081. The reversal of 1839020073 is 3700209381.

It is not a de Polignac number, because 1839020073 - 2⁹ = 1839019561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1839020063) 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, 226288 + ... + 234273.

It is an arithmetic number, because the mean of its divisors is an integer number (168565692).

Almost surely, 2^1839020073 is an apocalyptic number.

It is an amenable number.

1839020073 is a deficient number, since it is larger than the sum of its proper divisors (858030999).

1839020073 is an equidigital number, since it uses as much as digits as its factorization.

1839020073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460597 (or 460575 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1839020073 is about 42883.7973248639. The cubic root of 1839020073 is about 1225.1675623627.

The spelling of 1839020073 in words is "one billion, eight hundred thirty-nine million, twenty thousand, seventy-three".