199398488 has 8 divisors (see below), whose sum is σ = 373872180. Its totient is φ = 99699240.

The previous prime is 199398473. The next prime is 199398497. The reversal of 199398488 is 884893991.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×199398488² = 79519514033372288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12462398 + ... + 12462413.

Almost surely, 2^199398488 is an apocalyptic number.

It is an amenable number.

199398488 is a deficient number, since it is larger than the sum of its proper divisors (174473692).

199398488 is a wasteful number, since it uses less digits than its factorization.

199398488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24924817 (or 24924813 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 59.

The square root of 199398488 is about 14120.8529487422. The cubic root of 199398488 is about 584.2166816513.

The spelling of 199398488 in words is "one hundred ninety-nine million, three hundred ninety-eight thousand, four hundred eighty-eight".