13303420 has 48 divisors (see below), whose sum is σ = 31681440. Its totient is φ = 4651776.

The previous prime is 13303403. The next prime is 13303471. The reversal of 13303420 is 2430331.

It is a junction number, because it is equal to n+sod(n) for n = 13303394 and 13303403.

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, 3594 + ... + 6286.

It is an arithmetic number, because the mean of its divisors is an integer number (660030).

Almost surely, 2^13303420 is an apocalyptic number.

13303420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13303420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15840720).

13303420 is an abundant number, since it is smaller than the sum of its proper divisors (18378020).

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

13303420 is a wasteful number, since it uses less digits than its factorization.

13303420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 13303420 is about 3647.3853648881. The cubic root of 13303420 is about 236.9487566281.

Adding to 13303420 its reverse (2430331), we get a palindrome (15733751).

The spelling of 13303420 in words is "thirteen million, three hundred three thousand, four hundred twenty".