1338635 has 4 divisors (see below), whose sum is σ = 1606368. Its totient is φ = 1070904.

The previous prime is 1338587. The next prime is 1338637. The reversal of 1338635 is 5368331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1338635 - 2¹⁶ = 1273099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1338598 and 1338607.

It is not an unprimeable number, because it can be changed into a prime (1338637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133859 + ... + 133868.

It is an arithmetic number, because the mean of its divisors is an integer number (401592).

2^1338635 is an apocalyptic number.

1338635 is a deficient number, since it is larger than the sum of its proper divisors (267733).

1338635 is an equidigital number, since it uses as much as digits as its factorization.

1338635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267732.

The product of its digits is 6480, while the sum is 29.

The square root of 1338635 is about 1156.9939498545. The cubic root of 1338635 is about 110.2099296830.

The spelling of 1338635 in words is "one million, three hundred thirty-eight thousand, six hundred thirty-five".