13333620 has 96 divisors (see below), whose sum is σ = 39513600. Its totient is φ = 3354624.

The previous prime is 13333613. The next prime is 13333633. The reversal of 13333620 is 2633331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137412 + ... + 137508.

It is an arithmetic number, because the mean of its divisors is an integer number (411600).

Almost surely, 2^13333620 is an apocalyptic number.

13333620 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 13333620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19756800).

13333620 is an abundant number, since it is smaller than the sum of its proper divisors (26179980).

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

13333620 is a wasteful number, since it uses less digits than its factorization.

13333620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 13333620 is about 3651.5229699401. The cubic root of 13333620 is about 237.1279196917.

Adding to 13333620 its reverse (2633331), we get a palindrome (15966951).

The spelling of 13333620 in words is "thirteen million, three hundred thirty-three thousand, six hundred twenty".