199223830 has 64 divisors (see below), whose sum is σ = 397897920. Its totient is φ = 71368704.

The previous prime is 199223803. The next prime is 199223831. The reversal of 199223830 is 38322991.

It is a self number, because there is not a number n which added to its sum of digits gives 199223830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199223831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 775062 + ... + 775318.

It is an arithmetic number, because the mean of its divisors is an integer number (6217155).

Almost surely, 2^199223830 is an apocalyptic number.

199223830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199223830 is a deficient number, since it is larger than the sum of its proper divisors (198674090).

199223830 is a wasteful number, since it uses less digits than its factorization.

199223830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 199223830 is about 14114.6671940928. The cubic root of 199223830 is about 584.0460552751.

The spelling of 199223830 in words is "one hundred ninety-nine million, two hundred twenty-three thousand, eight hundred thirty".