331333464 has 128 divisors (see below), whose sum is σ = 1058158080. Its totient is φ = 83942400.

The previous prime is 331333463. The next prime is 331333477. The reversal of 331333464 is 464333133.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331333463) 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, 73582 + ... + 77954.

It is an arithmetic number, because the mean of its divisors is an integer number (8266860).

Almost surely, 2^331333464 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 331333464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529079040).

331333464 is an abundant number, since it is smaller than the sum of its proper divisors (726824616).

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

331333464 is a wasteful number, since it uses less digits than its factorization.

331333464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441 (or 4437 counting only the distinct ones).

The product of its digits is 23328, while the sum is 30.

The square root of 331333464 is about 18202.5675112057. The cubic root of 331333464 is about 691.9718600383.

Adding to 331333464 its reverse (464333133), we get a palindrome (795666597).

The spelling of 331333464 in words is "three hundred thirty-one million, three hundred thirty-three thousand, four hundred sixty-four".