191194944 has 56 divisors (see below), whose sum is σ = 509918208. Its totient is φ = 63221760.

The previous prime is 191194943. The next prime is 191194961. The reversal of 191194944 is 449491191.

191194944 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×191194944² = 73111013222326272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 191194896 and 191194905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191194943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20464 + ... + 28304.

Almost surely, 2^191194944 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 191194944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254959104).

191194944 is an abundant number, since it is smaller than the sum of its proper divisors (318723264).

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

191194944 is a wasteful number, since it uses less digits than its factorization.

191194944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7983 (or 7973 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 191194944 is about 13827.3259887803. The cubic root of 191194944 is about 576.0923848729.

The spelling of 191194944 in words is "one hundred ninety-one million, one hundred ninety-four thousand, nine hundred forty-four".