13336020 has 72 divisors (see below), whose sum is σ = 41417376. Its totient is φ = 3471552.

The previous prime is 13335997. The next prime is 13336031. The reversal of 13336020 is 2063331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13335984 and 13336002.

It is a congruent number.

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, 6879 + ... + 8601.

Almost surely, 2^13336020 is an apocalyptic number.

13336020 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 13336020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20708688).

13336020 is an abundant number, since it is smaller than the sum of its proper divisors (28081356).

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

13336020 is a wasteful number, since it uses less digits than its factorization.

13336020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781 (or 1776 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 13336020 is about 3651.8515851551. The cubic root of 13336020 is about 237.1421462075.

Adding to 13336020 its reverse (2063331), we get a palindrome (15399351).

The spelling of 13336020 in words is "thirteen million, three hundred thirty-six thousand, twenty".