13606320 has 240 divisors, whose sum is σ = 53434080. Its totient is φ = 2838528.

The previous prime is 13606309. The next prime is 13606339. The reversal of 13606320 is 2360631.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152836 + ... + 152924.

It is an arithmetic number, because the mean of its divisors is an integer number (222642).

Almost surely, 2^13606320 is an apocalyptic number.

13606320 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 13606320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26717040).

13606320 is an abundant number, since it is smaller than the sum of its proper divisors (39827760).

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

13606320 is a wasteful number, since it uses less digits than its factorization.

13606320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 13606320 is about 3688.6745586999. The cubic root of 13606320 is about 238.7336072368.

Adding to 13606320 its reverse (2360631), we get a palindrome (15966951).

The spelling of 13606320 in words is "thirteen million, six hundred six thousand, three hundred twenty".