199018944 has 168 divisors, whose sum is σ = 603552768. Its totient is φ = 65007360.

The previous prime is 199018927. The next prime is 199018973. The reversal of 199018944 is 449810991.

199018944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 199018944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1041889 + ... + 1042079.

It is an arithmetic number, because the mean of its divisors is an integer number (3592576).

Almost surely, 2^199018944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199018944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301776384).

199018944 is an abundant number, since it is smaller than the sum of its proper divisors (404533824).

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

199018944 is an equidigital number, since it uses as much as digits as its factorization.

199018944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 199018944 is about 14107.4074159641. The cubic root of 199018944 is about 583.8457714958.

The spelling of 199018944 in words is "one hundred ninety-nine million, eighteen thousand, nine hundred forty-four".