13356780 has 24 divisors (see below), whose sum is σ = 37399152. Its totient is φ = 3561792.

The previous prime is 13356779. The next prime is 13356787. The reversal of 13356780 is 8765331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13356787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111247 + ... + 111366.

It is an arithmetic number, because the mean of its divisors is an integer number (1558298).

Almost surely, 2^13356780 is an apocalyptic number.

13356780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13356780 is an abundant number, since it is smaller than the sum of its proper divisors (24042372).

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

13356780 is a wasteful number, since it uses less digits than its factorization.

13356780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222625 (or 222623 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 13356780 is about 3654.6928735531. The cubic root of 13356780 is about 237.2651343905.

The spelling of 13356780 in words is "thirteen million, three hundred fifty-six thousand, seven hundred eighty".