13336780 has 48 divisors (see below), whose sum is σ = 29675520. Its totient is φ = 5024448.

The previous prime is 13336769. The next prime is 13336783. The reversal of 13336780 is 8763331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13336783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36157 + ... + 36523.

It is an arithmetic number, because the mean of its divisors is an integer number (618240).

Almost surely, 2^13336780 is an apocalyptic number.

13336780 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 13336780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14837760).

13336780 is an abundant number, since it is smaller than the sum of its proper divisors (16338740).

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

13336780 is a wasteful number, since it uses less digits than its factorization.

13336780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 13336780 is about 3651.9556404754. The cubic root of 13336780 is about 237.1466509150.

The spelling of 13336780 in words is "thirteen million, three hundred thirty-six thousand, seven hundred eighty".