199475712 has 120 divisors (see below), whose sum is σ = 584570844. Its totient is φ = 65470464.

The previous prime is 199475693. The next prime is 199475719. The reversal of 199475712 is 217574991.

It can be written as a sum of positive squares in 2 ways, for example, as 197796096 + 1679616 = 14064^2 + 1296^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199475719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336088 + ... + 336680.

Almost surely, 2^199475712 is an apocalyptic number.

199475712 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 199475712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292285422).

199475712 is an abundant number, since it is smaller than the sum of its proper divisors (385095132).

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

199475712 is an equidigital number, since it uses as much as digits as its factorization.

199475712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 671 counting only the distinct ones).

The product of its digits is 158760, while the sum is 45.

The square root of 199475712 is about 14123.5870797754. The cubic root of 199475712 is about 584.2920913272.

The spelling of 199475712 in words is "one hundred ninety-nine million, four hundred seventy-five thousand, seven hundred twelve".