1838831373 has 6 divisors (see below), whose sum is σ = 2656089774. Its totient is φ = 1225887576.

The previous prime is 1838831363. The next prime is 1838831389. The reversal of 1838831373 is 3731388381.

It can be written as a sum of positive squares in only one way, i.e., 1732390884 + 106440489 = 41622^2 + 10317^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1838831373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838831303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102157290 + ... + 102157307.

It is an arithmetic number, because the mean of its divisors is an integer number (442681629).

Almost surely, 2^1838831373 is an apocalyptic number.

It is an amenable number.

1838831373 is a deficient number, since it is larger than the sum of its proper divisors (817258401).

1838831373 is a wasteful number, since it uses less digits than its factorization.

1838831373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204314603 (or 204314600 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 1838831373 is about 42881.5971367672. The cubic root of 1838831373 is about 1225.1256565256.

The spelling of 1838831373 in words is "one billion, eight hundred thirty-eight million, eight hundred thirty-one thousand, three hundred seventy-three".