191892016 has 20 divisors (see below), whose sum is σ = 376272792. Its totient is φ = 94789376.

The previous prime is 191891989. The next prime is 191892017. The reversal of 191892016 is 610298191.

It is not an unprimeable number, because it can be changed into a prime (191892017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70921 + ... + 73576.

Almost surely, 2^191892016 is an apocalyptic number.

191892016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

191892016 is a deficient number, since it is larger than the sum of its proper divisors (184380776).

191892016 is a wasteful number, since it uses less digits than its factorization.

191892016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144588 (or 144582 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 191892016 is about 13852.5093755608. The cubic root of 191892016 is about 576.7916551482.

The spelling of 191892016 in words is "one hundred ninety-one million, eight hundred ninety-two thousand, sixteen".