199537344 has 140 divisors (see below), whose sum is σ = 602140528. Its totient is φ = 65318400.

The previous prime is 199537343. The next prime is 199537367. The reversal of 199537344 is 443735991.

It is a self number, because there is not a number n which added to its sum of digits gives 199537344.

It is not an unprimeable number, because it can be changed into a prime (199537343) 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 19 ways as a sum of consecutive naturals, for example, 315909 + ... + 316539.

Almost surely, 2^199537344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199537344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301070264).

199537344 is an abundant number, since it is smaller than the sum of its proper divisors (402603184).

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

199537344 is an equidigital number, since it uses as much as digits as its factorization.

199537344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 697 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 199537344 is about 14125.7687932374. The cubic root of 199537344 is about 584.3522613627.

The spelling of 199537344 in words is "one hundred ninety-nine million, five hundred thirty-seven thousand, three hundred forty-four".