190328889 has 16 divisors (see below), whose sum is σ = 269343360. Its totient is φ = 119136000.

The previous prime is 190328869. The next prime is 190328893. The reversal of 190328889 is 988823091.

It is a happy number.

It is not a de Polignac number, because 190328889 - 2⁵ = 190328857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190328849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18139 + ... + 26639.

It is an arithmetic number, because the mean of its divisors is an integer number (16833960).

Almost surely, 2^190328889 is an apocalyptic number.

It is an amenable number.

190328889 is a deficient number, since it is larger than the sum of its proper divisors (79014471).

190328889 is a wasteful number, since it uses less digits than its factorization.

190328889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8960.

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 190328889 is about 13795.9736517580. The cubic root of 190328889 is about 575.2212270349.

The spelling of 190328889 in words is "one hundred ninety million, three hundred twenty-eight thousand, eight hundred eighty-nine".