199822406 has 16 divisors (see below), whose sum is σ = 342851616. Its totient is φ = 85563456.

The previous prime is 199822391. The next prime is 199822429. The reversal of 199822406 is 604228991.

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 in 7 ways as a sum of consecutive naturals, for example, 12290 + ... + 23466.

It is an arithmetic number, because the mean of its divisors is an integer number (21428226).

Almost surely, 2^199822406 is an apocalyptic number.

199822406 is a deficient number, since it is larger than the sum of its proper divisors (143029210).

199822406 is a wasteful number, since it uses less digits than its factorization.

199822406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12463.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 199822406 is about 14135.8553331590. The cubic root of 199822406 is about 584.6304003805.

The spelling of 199822406 in words is "one hundred ninety-nine million, eight hundred twenty-two thousand, four hundred six".