190866722 has 6 divisors (see below), whose sum is σ = 286329393. Its totient is φ = 95423592.

The previous prime is 190866713. The next prime is 190866733. The reversal of 190866722 is 227668091.

190866722 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 186022321 + 4844401 = 13639^2 + 2201^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=9769.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 190866722.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 14654 + ... + 24422.

Almost surely, 2^190866722 is an apocalyptic number.

190866722 is a deficient number, since it is larger than the sum of its proper divisors (95462671).

190866722 is an frugal number, since it uses more digits than its factorization.

190866722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19540 (or 9771 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 190866722 is about 13815.4522908228. The cubic root of 190866722 is about 575.7625391585.

The spelling of 190866722 in words is "one hundred ninety million, eight hundred sixty-six thousand, seven hundred twenty-two".