191492834 has 32 divisors (see below), whose sum is σ = 322545216. Its totient is φ = 84680640.

The previous prime is 191492831. The next prime is 191492843. The reversal of 191492834 is 438294191.

It is a junction number, because it is equal to n+sod(n) for n = 191492791 and 191492800.

It is not an unprimeable number, because it can be changed into a prime (191492831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62969 + ... + 65939.

It is an arithmetic number, because the mean of its divisors is an integer number (10079538).

Almost surely, 2^191492834 is an apocalyptic number.

191492834 is a deficient number, since it is larger than the sum of its proper divisors (131052382).

191492834 is a wasteful number, since it uses less digits than its factorization.

191492834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090.

The product of its digits is 62208, while the sum is 41.

The square root of 191492834 is about 13838.0935825713. The cubic root of 191492834 is about 576.3914219144.

The spelling of 191492834 in words is "one hundred ninety-one million, four hundred ninety-two thousand, eight hundred thirty-four".