191494320 has 160 divisors (see below), whose sum is σ = 626959872. Its totient is φ = 48254976.

The previous prime is 191494319. The next prime is 191494321. The reversal of 191494320 is 23494191.

191494320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (191494319) and next prime (191494321).

It is not an unprimeable number, because it can be changed into a prime (191494321) 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, 623607 + ... + 623913.

Almost surely, 2^191494320 is an apocalyptic number.

191494320 is a gapful number since it is divisible by the number (10) 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 191494320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313479936).

191494320 is an abundant number, since it is smaller than the sum of its proper divisors (435465552).

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

191494320 is a wasteful number, since it uses less digits than its factorization.

191494320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 191494320 is about 13838.1472748342. The cubic root of 191494320 is about 576.3929128587.

The spelling of 191494320 in words is "one hundred ninety-one million, four hundred ninety-four thousand, three hundred twenty".