199240722 has 30 divisors (see below), whose sum is σ = 446849733. Its totient is φ = 66353688.

The previous prime is 199240711. The next prime is 199240729. The reversal of 199240722 is 227042991.

199240722 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 124746561 + 74494161 = 11169^2 + 8631^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=9981.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (199240729) 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 14 ways as a sum of consecutive naturals, for example, 179104 + ... + 180212.

Almost surely, 2^199240722 is an apocalyptic number.

199240722 is an abundant number, since it is smaller than the sum of its proper divisors (247609011).

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

199240722 is an frugal number, since it uses more digits than its factorization.

199240722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 199240722 is about 14115.2655660459. The cubic root of 199240722 is about 584.0625617127.

The spelling of 199240722 in words is "one hundred ninety-nine million, two hundred forty thousand, seven hundred twenty-two".