13387266 has 24 divisors (see below), whose sum is σ = 29791164. Its totient is φ = 4341600.

The previous prime is 13387249. The next prime is 13387273. The reversal of 13387266 is 66278331.

It is a happy number.

13387266 is a `hidden beast` number, since 13 + 387 + 266 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13111641 + 275625 = 3621^2 + 525^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13387266.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9385 + ... + 10716.

Almost surely, 2^13387266 is an apocalyptic number.

13387266 is an abundant number, since it is smaller than the sum of its proper divisors (16403898).

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

13387266 is a wasteful number, since it uses less digits than its factorization.

13387266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20146 (or 20143 counting only the distinct ones).

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

The square root of 13387266 is about 3658.8612982730. The cubic root of 13387266 is about 237.4455114149.

The spelling of 13387266 in words is "thirteen million, three hundred eighty-seven thousand, two hundred sixty-six".