1338664 has 16 divisors (see below), whose sum is σ = 2642400. Its totient is φ = 634032.

The previous prime is 1338661. The next prime is 1338671. The reversal of 1338664 is 4668331.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1338661) 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, 4252 + ... + 4555.

It is an arithmetic number, because the mean of its divisors is an integer number (165150).

2^1338664 is an apocalyptic number.

It is an amenable number.

1338664 is a deficient number, since it is larger than the sum of its proper divisors (1303736).

1338664 is a wasteful number, since it uses less digits than its factorization.

1338664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8832 (or 8828 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 1338664 is about 1157.0064822636. The cubic root of 1338664 is about 110.2107255347.

It can be divided in two parts, 1338 and 664, that added together give a palindrome (2002).

The spelling of 1338664 in words is "one million, three hundred thirty-eight thousand, six hundred sixty-four".