191920002 has 8 divisors (see below), whose sum is σ = 383840016. Its totient is φ = 63973332.

The previous prime is 191919997. The next prime is 191920061. The reversal of 191920002 is 200029191.

191920002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

191920002 is an admirable 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, 15993328 + ... + 15993339.

It is an arithmetic number, because the mean of its divisors is an integer number (47980002).

Almost surely, 2^191920002 is an apocalyptic number.

191920002 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.

191920002 is a wasteful number, since it uses less digits than its factorization.

191920002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31986672.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 191920002 is about 13853.5194806230. The cubic root of 191920002 is about 576.8196940195.

Adding to 191920002 its reverse (200029191), we get a palindrome (391949193).

The spelling of 191920002 in words is "one hundred ninety-one million, nine hundred twenty thousand, two".