331016 has 32 divisors (see below), whose sum is σ = 743040. Its totient is φ = 135168.

The previous prime is 331013. The next prime is 331027. The reversal of 331016 is 610133.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (331013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160 + ... + 1416.

It is an arithmetic number, because the mean of its divisors is an integer number (23220).

2³³¹⁰¹⁶ 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 331016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371520).

331016 is an abundant number, since it is smaller than the sum of its proper divisors (412024).

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

331016 is a wasteful number, since it uses less digits than its factorization.

331016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 331016 is about 575.3398995377. The cubic root of 331016 is about 69.1750787337.

Adding to 331016 its reverse (610133), we get a palindrome (941149).

The spelling of 331016 in words is "three hundred thirty-one thousand, sixteen".