13366720 has 28 divisors (see below), whose sum is σ = 31830264. Its totient is φ = 5346560.

The previous prime is 13366711. The next prime is 13366723. The reversal of 13366720 is 2766331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13366723) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20566 + ... + 21205.

Almost surely, 2^13366720 is an apocalyptic number.

13366720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13366720 is an abundant number, since it is smaller than the sum of its proper divisors (18463544).

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

13366720 is an equidigital number, since it uses as much as digits as its factorization.

13366720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41788 (or 41778 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 13366720 is about 3656.0525160342. The cubic root of 13366720 is about 237.3239766823.

The spelling of 13366720 in words is "thirteen million, three hundred sixty-six thousand, seven hundred twenty".