331403064 has 128 divisors (see below), whose sum is σ = 886152960. Its totient is φ = 103154688.

The previous prime is 331403047. The next prime is 331403069. The reversal of 331403064 is 460304133.

331403064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331403069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3992767 + ... + 3992849.

It is an arithmetic number, because the mean of its divisors is an integer number (6923070).

Almost surely, 2^331403064 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 331403064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443076480).

331403064 is an abundant number, since it is smaller than the sum of its proper divisors (554749896).

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

331403064 is a wasteful number, since it uses less digits than its factorization.

331403064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 331403064 is about 18204.4792290249. The cubic root of 331403064 is about 692.0203085801.

Adding to 331403064 its reverse (460304133), we get a palindrome (791707197).

The spelling of 331403064 in words is "three hundred thirty-one million, four hundred three thousand, sixty-four".