199834254 has 12 divisors (see below), whose sum is σ = 432974256. Its totient is φ = 66611412.

The previous prime is 199834249. The next prime is 199834307. The reversal of 199834254 is 452438991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5550934 + ... + 5550969.

It is an arithmetic number, because the mean of its divisors is an integer number (36081188).

Almost surely, 2^199834254 is an apocalyptic number.

199834254 is an abundant number, since it is smaller than the sum of its proper divisors (233140002).

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

199834254 is a wasteful number, since it uses less digits than its factorization.

199834254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11101911 (or 11101908 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 199834254 is about 14136.2744031092. The cubic root of 199834254 is about 584.6419549141.

The spelling of 199834254 in words is "one hundred ninety-nine million, eight hundred thirty-four thousand, two hundred fifty-four".