199838536 has 64 divisors (see below), whose sum is σ = 428457600. Its totient is φ = 86811648.

The previous prime is 199838533. The next prime is 199838537. The reversal of 199838536 is 635838991.

199838536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (199838531) 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, 89611 + ... + 91813.

It is an arithmetic number, because the mean of its divisors is an integer number (6694650).

Almost surely, 2^199838536 is an apocalyptic number.

It is an amenable number.

199838536 is an abundant number, since it is smaller than the sum of its proper divisors (228619064).

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

199838536 is a wasteful number, since it uses less digits than its factorization.

199838536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278 (or 2274 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 52.

The square root of 199838536 is about 14136.4258566301. The cubic root of 199838536 is about 584.6461307397.

The spelling of 199838536 in words is "one hundred ninety-nine million, eight hundred thirty-eight thousand, five hundred thirty-six".