199629822 has 48 divisors (see below), whose sum is σ = 475276032. Its totient is φ = 55707120.

The previous prime is 199629817. The next prime is 199629839. The reversal of 199629822 is 228926991.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4747 + ... + 20537.

It is an arithmetic number, because the mean of its divisors is an integer number (9901584).

Almost surely, 2^199629822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199629822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237638016).

199629822 is an abundant number, since it is smaller than the sum of its proper divisors (275646210).

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

199629822 is a wasteful number, since it uses less digits than its factorization.

199629822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15853 (or 15846 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 199629822 is about 14129.0417934126. The cubic root of 199629822 is about 584.4425224655.

The spelling of 199629822 in words is "one hundred ninety-nine million, six hundred twenty-nine thousand, eight hundred twenty-two".