1899349936 has 40 divisors (see below), whose sum is σ = 4189089024. Its totient is φ = 825802560.

The previous prime is 1899349931. The next prime is 1899349937. The reversal of 1899349936 is 6399439981.

It is not an unprimeable number, because it can be changed into a prime (1899349931) 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, 230556 + ... + 238651.

Almost surely, 2^1899349936 is an apocalyptic number.

1899349936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1899349936 is an abundant number, since it is smaller than the sum of its proper divisors (2289739088).

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

1899349936 is a wasteful number, since it uses less digits than its factorization.

1899349936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469249 (or 469243 counting only the distinct ones).

The product of its digits is 11337408, while the sum is 61.

The square root of 1899349936 is about 43581.5320520057. The cubic root of 1899349936 is about 1238.4210600471.

The spelling of 1899349936 in words is "one billion, eight hundred ninety-nine million, three hundred forty-nine thousand, nine hundred thirty-six".