334428189 has 8 divisors (see below), whose sum is σ = 447640320. Its totient is φ = 222084096.

The previous prime is 334428187. The next prime is 334428209. The reversal of 334428189 is 981824433.

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

It is not a de Polignac number, because 334428189 - 2¹ = 334428187 is a prime.

It is a super-2 number, since 2×334428189² = 223684427195639442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 334428189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (334428181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216109 + ... + 217650.

It is an arithmetic number, because the mean of its divisors is an integer number (55955040).

Almost surely, 2^334428189 is an apocalyptic number.

It is an amenable number.

334428189 is a deficient number, since it is larger than the sum of its proper divisors (113212131).

334428189 is a wasteful number, since it uses less digits than its factorization.

334428189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434019.

The product of its digits is 165888, while the sum is 42.

The square root of 334428189 is about 18287.3778601526. The cubic root of 334428189 is about 694.1195752459.

The spelling of 334428189 in words is "three hundred thirty-four million, four hundred twenty-eight thousand, one hundred eighty-nine".