189191802 has 8 divisors (see below), whose sum is σ = 378383616. Its totient is φ = 63063932.

The previous prime is 189191801. The next prime is 189191809. The reversal of 189191802 is 208191981.

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

189191802 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (189191801) 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, 15765978 + ... + 15765989.

It is an arithmetic number, because the mean of its divisors is an integer number (47297952).

Almost surely, 2^189191802 is an apocalyptic number.

189191802 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.

189191802 is a wasteful number, since it uses less digits than its factorization.

189191802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31531972.

The product of its (nonzero) digits is 10368, while the sum is 39.

The square root of 189191802 is about 13754.7010872647. The cubic root of 189191802 is about 574.0734183143.

The spelling of 189191802 in words is "one hundred eighty-nine million, one hundred ninety-one thousand, eight hundred two".