330420405 has 16 divisors (see below), whose sum is σ = 604197504. Its totient is φ = 151049280.

The previous prime is 330420379. The next prime is 330420437. The reversal of 330420405 is 504024033.

It is a happy number.

It is not a de Polignac number, because 330420405 - 2⁵ = 330420373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1573326 + ... + 1573535.

It is an arithmetic number, because the mean of its divisors is an integer number (37762344).

Almost surely, 2^330420405 is an apocalyptic number.

330420405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

330420405 is a deficient number, since it is larger than the sum of its proper divisors (273777099).

330420405 is a wasteful number, since it uses less digits than its factorization.

330420405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146876.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 330420405 is about 18177.4697084055. The cubic root of 330420405 is about 691.3356506438.

Adding to 330420405 its reverse (504024033), we get a palindrome (834444438).

The spelling of 330420405 in words is "three hundred thirty million, four hundred twenty thousand, four hundred five".