331336064 has 32 divisors (see below), whose sum is σ = 662777640. Its totient is φ = 164992000.

The previous prime is 331336039. The next prime is 331336087. The reversal of 331336064 is 460633133.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26972 + ... + 37284.

Almost surely, 2^331336064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331336064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331388820).

331336064 is an abundant number, since it is smaller than the sum of its proper divisors (331441576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331336064 is a wasteful number, since it uses less digits than its factorization.

331336064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10578 (or 10566 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

The square root of 331336064 is about 18202.6389295618. The cubic root of 331336064 is about 691.9736700196.

Adding to 331336064 its reverse (460633133), we get a palindrome (791969197).

The spelling of 331336064 in words is "three hundred thirty-one million, three hundred thirty-six thousand, sixty-four".