13286780 has 36 divisors (see below), whose sum is σ = 30221352. Its totient is φ = 4904640.

The previous prime is 13286771. The next prime is 13286783. The reversal of 13286780 is 8768231.

It is a self number, because there is not a number n which added to its sum of digits gives 13286780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13286783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1415 + ... + 5345.

It is an arithmetic number, because the mean of its divisors is an integer number (839482).

Almost surely, 2^13286780 is an apocalyptic number.

13286780 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 13286780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15110676).

13286780 is an abundant number, since it is smaller than the sum of its proper divisors (16934572).

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

13286780 is a wasteful number, since it uses less digits than its factorization.

13286780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966 (or 3951 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 13286780 is about 3645.1035650582. The cubic root of 13286780 is about 236.8499230861.

The spelling of 13286780 in words is "thirteen million, two hundred eighty-six thousand, seven hundred eighty".