331011340 has 48 divisors (see below), whose sum is σ = 765876384. Its totient is φ = 119168000.

The previous prime is 331011337. The next prime is 331011347. The reversal of 331011340 is 43110133.

331011340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (331011347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14772 + ... + 29668.

It is an arithmetic number, because the mean of its divisors is an integer number (15955758).

Almost surely, 2^331011340 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 331011340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382938192).

331011340 is an abundant number, since it is smaller than the sum of its proper divisors (434865044).

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

331011340 is a wasteful number, since it uses less digits than its factorization.

331011340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15018 (or 15016 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 331011340 is about 18193.7170473765. The cubic root of 331011340 is about 691.7475411956.

Adding to 331011340 its reverse (43110133), we get a palindrome (374121473).

The spelling of 331011340 in words is "three hundred thirty-one million, eleven thousand, three hundred forty".