199090944 has 324 divisors, whose sum is σ = 685238736. Its totient is φ = 55148544.

The previous prime is 199090939. The next prime is 199090993. The reversal of 199090944 is 449090991.

199090944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×199090944² = 79274407965622272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 199090944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8656117 + ... + 8656139.

Almost surely, 2^199090944 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 199090944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342619368).

199090944 is an abundant number, since it is smaller than the sum of its proper divisors (486147792).

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

199090944 is a wasteful number, since it uses less digits than its factorization.

199090944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 199090944 is about 14109.9590360851. The cubic root of 199090944 is about 583.9161698650.

The spelling of 199090944 in words is "one hundred ninety-nine million, ninety thousand, nine hundred forty-four".