1338686 has 8 divisors (see below), whose sum is σ = 2013984. Its totient is φ = 667360.

The previous prime is 1338679. The next prime is 1338703. The reversal of 1338686 is 6868331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86 + ... + 1638.

It is an arithmetic number, because the mean of its divisors is an integer number (251748).

2^1338686 is an apocalyptic number.

1338686 is a deficient number, since it is larger than the sum of its proper divisors (675298).

1338686 is a wasteful number, since it uses less digits than its factorization.

1338686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986.

The product of its digits is 20736, while the sum is 35.

The square root of 1338686 is about 1157.0159895179. The cubic root of 1338686 is about 110.2113292766.

The spelling of 1338686 in words is "one million, three hundred thirty-eight thousand, six hundred eighty-six".