191948620 has 12 divisors (see below), whose sum is σ = 403092144. Its totient is φ = 76779440.

The previous prime is 191948597. The next prime is 191948629. The reversal of 191948620 is 26849191.

It is not an unprimeable number, because it can be changed into a prime (191948629) 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, 4798696 + ... + 4798735.

It is an arithmetic number, because the mean of its divisors is an integer number (33591012).

Almost surely, 2^191948620 is an apocalyptic number.

191948620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

191948620 is an abundant number, since it is smaller than the sum of its proper divisors (211143524).

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

191948620 is a wasteful number, since it uses less digits than its factorization.

191948620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9597440 (or 9597438 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 191948620 is about 13854.5523204469. The cubic root of 191948620 is about 576.8483632660.

The spelling of 191948620 in words is "one hundred ninety-one million, nine hundred forty-eight thousand, six hundred twenty".