331730189 has 8 divisors (see below), whose sum is σ = 379440000. Its totient is φ = 284100336.

The previous prime is 331730141. The next prime is 331730207. The reversal of 331730189 is 981037133.

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

It is a cyclic number.

It is not a de Polignac number, because 331730189 - 2⁸ = 331729933 is a prime.

It is a super-2 number, since 2×331730189² = 220089836587951442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331730489) 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, 10814 + ... + 27935.

It is an arithmetic number, because the mean of its divisors is an integer number (47430000).

Almost surely, 2^331730189 is an apocalyptic number.

It is an amenable number.

331730189 is a deficient number, since it is larger than the sum of its proper divisors (47709811).

331730189 is a wasteful number, since it uses less digits than its factorization.

331730189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39979.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 331730189 is about 18213.4617522315. The cubic root of 331730189 is about 692.2479293879.

The spelling of 331730189 in words is "three hundred thirty-one million, seven hundred thirty thousand, one hundred eighty-nine".