331348320 has 240 divisors, whose sum is σ = 1202726448. Its totient is φ = 85847040.

The previous prime is 331348319. The next prime is 331348321. The reversal of 331348320 is 23843133.

331348320 is a `hidden beast` number, since 331 + 3 + 4 + 8 + 320 = 666.

It is an interprime number because it is at equal distance from previous prime (331348319) and next prime (331348321).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331348321) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 479175 + ... + 479865.

Almost surely, 2^331348320 is an apocalyptic number.

331348320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331348320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601363224).

331348320 is an abundant number, since it is smaller than the sum of its proper divisors (871378128).

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

331348320 is a wasteful number, since it uses less digits than its factorization.

331348320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 331348320 is about 18202.9755809318. The cubic root of 331348320 is about 691.9822018655.

The spelling of 331348320 in words is "three hundred thirty-one million, three hundred forty-eight thousand, three hundred twenty".