330420906 has 48 divisors (see below), whose sum is σ = 755539200. Its totient is φ = 104073984.

The previous prime is 330420899. The next prime is 330420911. The reversal of 330420906 is 609024033.

It is a self number, because there is not a number n which added to its sum of digits gives 330420906.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162810 + ... + 164826.

It is an arithmetic number, because the mean of its divisors is an integer number (15740400).

Almost surely, 2^330420906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 330420906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377769600).

330420906 is an abundant number, since it is smaller than the sum of its proper divisors (425118294).

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

330420906 is a wasteful number, since it uses less digits than its factorization.

330420906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523 (or 2520 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 330420906 is about 18177.4834891962. The cubic root of 330420906 is about 691.3360000563.

Adding to 330420906 its reverse (609024033), we get a palindrome (939444939).

The spelling of 330420906 in words is "three hundred thirty million, four hundred twenty thousand, nine hundred six".