13020336 has 60 divisors (see below), whose sum is σ = 41647632. Its totient is φ = 3719808.

The previous prime is 13020331. The next prime is 13020347. The reversal of 13020336 is 63302031.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (13020331) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5451 + ... + 7466.

Almost surely, 2^13020336 is an apocalyptic number.

13020336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13020336 is an abundant number, since it is smaller than the sum of its proper divisors (28627296).

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

13020336 is a wasteful number, since it uses less digits than its factorization.

13020336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12938 (or 12929 counting only the distinct ones).

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

The square root of 13020336 is about 3608.3702692490. The cubic root of 13020336 is about 235.2560119272.

Adding to 13020336 its reverse (63302031), we get a palindrome (76322367).

The spelling of 13020336 in words is "thirteen million, twenty thousand, three hundred thirty-six".