199494774 has 24 divisors (see below), whose sum is σ = 432546192. Its totient is φ = 66450960.

The previous prime is 199494751. The next prime is 199494781. The reversal of 199494774 is 477494991.

199494774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×199494774² = 79596329706622152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 199494774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29932 + ... + 35984.

It is an arithmetic number, because the mean of its divisors is an integer number (18022758).

Almost surely, 2^199494774 is an apocalyptic number.

199494774 is an abundant number, since it is smaller than the sum of its proper divisors (233051418).

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

199494774 is a wasteful number, since it uses less digits than its factorization.

199494774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7892 (or 7889 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 199494774 is about 14124.2618922194. The cubic root of 199494774 is about 584.3107024837.

The spelling of 199494774 in words is "one hundred ninety-nine million, four hundred ninety-four thousand, seven hundred seventy-four".