13220760 has 64 divisors (see below), whose sum is σ = 45331200. Its totient is φ = 3021696.

The previous prime is 13220749. The next prime is 13220773. The reversal of 13220760 is 6702231.

It is a happy number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7030 + ... + 8709.

It is an arithmetic number, because the mean of its divisors is an integer number (708300).

Almost surely, 2^13220760 is an apocalyptic number.

13220760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13220760 is an abundant number, since it is smaller than the sum of its proper divisors (32110440).

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

13220760 is a wasteful number, since it uses less digits than its factorization.

13220760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15760 (or 15756 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13220760 is about 3636.0363034491. The cubic root of 13220760 is about 236.4569810623.

Adding to 13220760 its reverse (6702231), we get a palindrome (19922991).

The spelling of 13220760 in words is "thirteen million, two hundred twenty thousand, seven hundred sixty".