199494768 has 40 divisors (see below), whose sum is σ = 562214016. Its totient is φ = 60452800.

The previous prime is 199494751. The next prime is 199494781. The reversal of 199494768 is 867494991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188388 + ... + 189443.

Almost surely, 2^199494768 is an apocalyptic number.

It is an amenable number.

199494768 is an abundant number, since it is smaller than the sum of its proper divisors (362719248).

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

199494768 is a wasteful number, since it uses less digits than its factorization.

199494768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377853 (or 377847 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The square root of 199494768 is about 14124.2616798189. The cubic root of 199494768 is about 584.3106966258.

The spelling of 199494768 in words is "one hundred ninety-nine million, four hundred ninety-four thousand, seven hundred sixty-eight".