191680272 has 60 divisors (see below), whose sum is σ = 613075840. Its totient is φ = 54765504.

The previous prime is 191680271. The next prime is 191680301. The reversal of 191680272 is 272086191.

191680272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (191680271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94072 + ... + 96087.

Almost surely, 2^191680272 is an apocalyptic number.

191680272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

191680272 is an abundant number, since it is smaller than the sum of its proper divisors (421395568).

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

191680272 is a wasteful number, since it uses less digits than its factorization.

191680272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190180 (or 190171 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 191680272 is about 13844.8644630419. The cubic root of 191680272 is about 576.5794227258.

The spelling of 191680272 in words is "one hundred ninety-one million, six hundred eighty thousand, two hundred seventy-two".