13003320 has 64 divisors (see below), whose sum is σ = 42560640. Its totient is φ = 3152000.

The previous prime is 13003313. The next prime is 13003363. The reversal of 13003320 is 2330031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 13003296 and 13003305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3606 + ... + 6245.

It is an arithmetic number, because the mean of its divisors is an integer number (665010).

Almost surely, 2^13003320 is an apocalyptic number.

13003320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13003320 is an abundant number, since it is smaller than the sum of its proper divisors (29557320).

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

13003320 is a wasteful number, since it uses less digits than its factorization.

13003320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9876 (or 9872 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 13003320 is about 3606.0116472358. The cubic root of 13003320 is about 235.1534835585.

Adding to 13003320 its reverse (2330031), we get a palindrome (15333351).

Subtracting from 13003320 its reverse (2330031), we obtain a square (10673289 = 3267²).

The spelling of 13003320 in words is "thirteen million, three thousand, three hundred twenty".