1819938882 has 16 divisors (see below), whose sum is σ = 3691144512. Its totient is φ = 598101840.

The previous prime is 1819938881. The next prime is 1819938899. The reversal of 1819938882 is 2888399181.

It is not an unprimeable number, because it can be changed into a prime (1819938881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2135653 + ... + 2136504.

It is an arithmetic number, because the mean of its divisors is an integer number (230696532).

Almost surely, 2^1819938882 is an apocalyptic number.

1819938882 is an abundant number, since it is smaller than the sum of its proper divisors (1871205630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1819938882 is a wasteful number, since it uses less digits than its factorization.

1819938882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272233.

The product of its digits is 1990656, while the sum is 57.

The square root of 1819938882 is about 42660.7416953808. The cubic root of 1819938882 is about 1220.9154827902.

The spelling of 1819938882 in words is "one billion, eight hundred nineteen million, nine hundred thirty-eight thousand, eight hundred eighty-two".