13300020 has 72 divisors (see below), whose sum is σ = 41454504. Its totient is φ = 3449088.

The previous prime is 13299991. The next prime is 13300039. The reversal of 13300020 is 2000331.

It is a happy number.

13300020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 725904 + 12574116 = 852^2 + 3546^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 13299975 and 13300011.

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, 5662 + ... + 7658.

It is an arithmetic number, because the mean of its divisors is an integer number (575757).

Almost surely, 2^13300020 is an apocalyptic number.

13300020 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 13300020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20727252).

13300020 is an abundant number, since it is smaller than the sum of its proper divisors (28154484).

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

13300020 is a wasteful number, since it uses less digits than its factorization.

13300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 13300020 is about 3646.9192478035. The cubic root of 13300020 is about 236.9285689767.

Adding to 13300020 its reverse (2000331), we get a palindrome (15300351).

The spelling of 13300020 in words is "thirteen million, three hundred thousand, twenty".