1845349136 has 20 divisors (see below), whose sum is σ = 3635965200. Its totient is φ = 907035552.

The previous prime is 1845349117. The next prime is 1845349139. The reversal of 1845349136 is 6319435481.

It is not an unprimeable number, because it can be changed into a prime (1845349139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976466 + ... + 978353.

It is an arithmetic number, because the mean of its divisors is an integer number (181798260).

Almost surely, 2^1845349136 is an apocalyptic number.

1845349136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1845349136 is a deficient number, since it is larger than the sum of its proper divisors (1790616064).

1845349136 is a wasteful number, since it uses less digits than its factorization.

1845349136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954886 (or 1954880 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 1845349136 is about 42957.5271169093. The cubic root of 1845349136 is about 1226.5714412269.

The spelling of 1845349136 in words is "one billion, eight hundred forty-five million, three hundred forty-nine thousand, one hundred thirty-six".