331344409 has 8 divisors (see below), whose sum is σ = 363061728. Its totient is φ = 299892960.

The previous prime is 331344389. The next prime is 331344421. The reversal of 331344409 is 904443133.

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 331344409 - 2⁹ = 331343897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331344809) 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, 63852 + ... + 68845.

It is an arithmetic number, because the mean of its divisors is an integer number (45382716).

Almost surely, 2^331344409 is an apocalyptic number.

It is an amenable number.

331344409 is a deficient number, since it is larger than the sum of its proper divisors (31717319).

331344409 is a wasteful number, since it uses less digits than its factorization.

331344409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132935.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 331344409 is about 18202.8681531236. The cubic root of 331344409 is about 691.9794792995.

The spelling of 331344409 in words is "three hundred thirty-one million, three hundred forty-four thousand, four hundred nine".