199249698 has 8 divisors (see below), whose sum is σ = 398499408. Its totient is φ = 66416564.

The previous prime is 199249693. The next prime is 199249723. The reversal of 199249698 is 896942991.

It is a sphenic number, since it is the product of 3 distinct primes.

199249698 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (199249693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16604136 + ... + 16604147.

It is an arithmetic number, because the mean of its divisors is an integer number (49812426).

Almost surely, 2^199249698 is an apocalyptic number.

199249698 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

199249698 is a wasteful number, since it uses less digits than its factorization.

199249698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33208288.

The product of its digits is 2519424, while the sum is 57.

The square root of 199249698 is about 14115.5835161002. The cubic root of 199249698 is about 584.0713324546.

The spelling of 199249698 in words is "one hundred ninety-nine million, two hundred forty-nine thousand, six hundred ninety-eight".