1333664 has 24 divisors (see below), whose sum is σ = 2667168. Its totient is φ = 656320.

The previous prime is 1333663. The next prime is 1333669. The reversal of 1333664 is 4663331.

It is not an unprimeable number, because it can be changed into a prime (1333663) 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, 1979 + ... + 2565.

It is an arithmetic number, because the mean of its divisors is an integer number (111132).

2^1333664 is an apocalyptic number.

It is an amenable number.

1333664 is a deficient number, since it is larger than the sum of its proper divisors (1333504).

1333664 is an equidigital number, since it uses as much as digits as its factorization.

1333664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 660 counting only the distinct ones).

The product of its digits is 3888, while the sum is 26.

The square root of 1333664 is about 1154.8437123698. The cubic root of 1333664 is about 110.0733395217.

Adding to 1333664 its reverse (4663331), we get a palindrome (5996995).

The spelling of 1333664 in words is "one million, three hundred thirty-three thousand, six hundred sixty-four".