191020422 has 8 divisors (see below), whose sum is σ = 382040856. Its totient is φ = 63673472.

The previous prime is 191020411. The next prime is 191020439. The reversal of 191020422 is 224020191.

It is a sphenic number, since it is the product of 3 distinct primes.

191020422 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15918363 + ... + 15918374.

It is an arithmetic number, because the mean of its divisors is an integer number (47755107).

Almost surely, 2^191020422 is an apocalyptic number.

191020422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

191020422 is a wasteful number, since it uses less digits than its factorization.

191020422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31836742.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 191020422 is about 13821.0137833663. The cubic root of 191020422 is about 575.9170465512.

The spelling of 191020422 in words is "one hundred ninety-one million, twenty thousand, four hundred twenty-two".