13335520 has 48 divisors (see below), whose sum is σ = 34373808. Its totient is φ = 4848640.

The previous prime is 13335499. The next prime is 13335529. The reversal of 13335520 is 2553331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13335491 and 13335500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13335529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2029 + ... + 5548.

It is an arithmetic number, because the mean of its divisors is an integer number (716121).

Almost surely, 2^13335520 is an apocalyptic number.

13335520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13335520 is an abundant number, since it is smaller than the sum of its proper divisors (21038288).

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

13335520 is a wasteful number, since it uses less digits than its factorization.

13335520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7603 (or 7595 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 13335520 is about 3651.7831260906. The cubic root of 13335520 is about 237.1391824908.

Adding to 13335520 its reverse (2553331), we get a palindrome (15888851).

It can be divided in two parts, 133 and 35520, that added together give a palindrome (35653).

The spelling of 13335520 in words is "thirteen million, three hundred thirty-five thousand, five hundred twenty".