330545440 has 48 divisors (see below), whose sum is σ = 787110912. Its totient is φ = 131169024.

The previous prime is 330545431. The next prime is 330545441. The reversal of 330545440 is 44545033.

It is a junction number, because it is equal to n+sod(n) for n = 330545399 and 330545408.

It is not an unprimeable number, because it can be changed into a prime (330545441) 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, 12187 + ... + 28453.

It is an arithmetic number, because the mean of its divisors is an integer number (16398144).

Almost surely, 2^330545440 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 330545440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393555456).

330545440 is an abundant number, since it is smaller than the sum of its proper divisors (456565472).

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

330545440 is a wasteful number, since it uses less digits than its factorization.

330545440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16409 (or 16401 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 330545440 is about 18180.9086681607. The cubic root of 330545440 is about 691.4228428497.

The spelling of 330545440 in words is "three hundred thirty million, five hundred forty-five thousand, four hundred forty".