199449792 has 84 divisors (see below), whose sum is σ = 579857616. Its totient is φ = 65533440.

The previous prime is 199449787. The next prime is 199449793. The reversal of 199449792 is 297944991.

199449792 is a `hidden beast` number, since 199 + 449 + 7 + 9 + 2 = 666.

199449792 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 (199449793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38458 + ... + 43334.

Almost surely, 2^199449792 is an apocalyptic number.

199449792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199449792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289928808).

199449792 is an abundant number, since it is smaller than the sum of its proper divisors (380407824).

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

199449792 is a wasteful number, since it uses less digits than its factorization.

199449792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4966 (or 4953 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 199449792 is about 14122.6694360521. The cubic root of 199449792 is about 584.2667824699.

The spelling of 199449792 in words is "one hundred ninety-nine million, four hundred forty-nine thousand, seven hundred ninety-two".