331328605 has 8 divisors (see below), whose sum is σ = 397822464. Its totient is φ = 264910800.

The previous prime is 331328573. The next prime is 331328617. The reversal of 331328605 is 506823133.

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

It is not a de Polignac number, because 331328605 - 2⁵ = 331328573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8941 + ... + 27250.

It is an arithmetic number, because the mean of its divisors is an integer number (49727808).

Almost surely, 2^331328605 is an apocalyptic number.

It is an amenable number.

331328605 is a deficient number, since it is larger than the sum of its proper divisors (66493859).

331328605 is a wasteful number, since it uses less digits than its factorization.

331328605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38027.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 331328605 is about 18202.4340405342. The cubic root of 331328605 is about 691.9684774363.

The spelling of 331328605 in words is "three hundred thirty-one million, three hundred twenty-eight thousand, six hundred five".