13378266 has 24 divisors (see below), whose sum is σ = 31621824. Its totient is φ = 4053960.

The previous prime is 13378247. The next prime is 13378271. The reversal of 13378266 is 66287331.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13378266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33586 + ... + 33981.

It is an arithmetic number, because the mean of its divisors is an integer number (1317576).

Almost surely, 2^13378266 is an apocalyptic number.

13378266 is an abundant number, since it is smaller than the sum of its proper divisors (18243558).

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

13378266 is a wasteful number, since it uses less digits than its factorization.

13378266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67586 (or 67583 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 13378266 is about 3657.6312006543. The cubic root of 13378266 is about 237.3922894782.

The spelling of 13378266 in words is "thirteen million, three hundred seventy-eight thousand, two hundred sixty-six".