199213056 has 180 divisors, whose sum is σ = 661106992. Its totient is φ = 56623104.

The previous prime is 199213019. The next prime is 199213057. The reversal of 199213056 is 650312991.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 199213056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199213057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1032096 + ... + 1032288.

Almost surely, 2^199213056 is an apocalyptic number.

199213056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199213056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330553496).

199213056 is an abundant number, since it is smaller than the sum of its proper divisors (461893936).

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

199213056 is an equidigital number, since it uses as much as digits as its factorization.

199213056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 199213056 is about 14114.2855292076. The cubic root of 199213056 is about 584.0355267060.

The spelling of 199213056 in words is "one hundred ninety-nine million, two hundred thirteen thousand, fifty-six".