191960394 has 16 divisors (see below), whose sum is σ = 390428640. Its totient is φ = 62902160.

The previous prime is 191960389. The next prime is 191960437. The reversal of 191960394 is 493069191.

It is an unprimeable number.

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, 270777 + ... + 271484.

It is an arithmetic number, because the mean of its divisors is an integer number (24401790).

Almost surely, 2^191960394 is an apocalyptic number.

191960394 is an abundant number, since it is smaller than the sum of its proper divisors (198468246).

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

191960394 is a wasteful number, since it uses less digits than its factorization.

191960394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542325.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 191960394 is about 13854.9772284187. The cubic root of 191960394 is about 576.8601575225.

The spelling of 191960394 in words is "one hundred ninety-one million, nine hundred sixty thousand, three hundred ninety-four".