330440 has 32 divisors (see below), whose sum is σ = 812160. Its totient is φ = 120000.

The previous prime is 330439. The next prime is 330469. The reversal of 330440 is 44033.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65 + ... + 815.

It is an arithmetic number, because the mean of its divisors is an integer number (25380).

2³³⁰⁴⁴⁰ 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 330440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406080).

330440 is an abundant number, since it is smaller than the sum of its proper divisors (481720).

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

330440 is a wasteful number, since it uses less digits than its factorization.

330440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 330440 is about 574.8391079250. The cubic root of 330440 is about 69.1349316521.

Adding to 330440 its reverse (44033), we get a palindrome (374473).

The spelling of 330440 in words is "three hundred thirty thousand, four hundred forty".