199869084 has 18 divisors (see below), whose sum is σ = 505224720. Its totient is φ = 66623016.

The previous prime is 199869077. The next prime is 199869101. The reversal of 199869084 is 480968991.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 199869084.

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, 2775924 + ... + 2775995.

It is an arithmetic number, because the mean of its divisors is an integer number (28068040).

Almost surely, 2^199869084 is an apocalyptic number.

It is an amenable number.

199869084 is an abundant number, since it is smaller than the sum of its proper divisors (305355636).

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

199869084 is a wasteful number, since it uses less digits than its factorization.

199869084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551929 (or 5551924 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 199869084 is about 14137.5062864708. The cubic root of 199869084 is about 584.6759195555.

The spelling of 199869084 in words is "one hundred ninety-nine million, eight hundred sixty-nine thousand, eighty-four".