1316664 has 24 divisors (see below), whose sum is σ = 3566160. Its totient is φ = 438864.

The previous prime is 1316657. The next prime is 1316669. The reversal of 1316664 is 4666131.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9072 + ... + 9215.

It is an arithmetic number, because the mean of its divisors is an integer number (148590).

2^1316664 is an apocalyptic number.

It is an amenable number.

1316664 is an abundant number, since it is smaller than the sum of its proper divisors (2249496).

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

1316664 is a wasteful number, since it uses less digits than its factorization.

1316664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18299 (or 18292 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 1316664 is about 1147.4598032175. The cubic root of 1316664 is about 109.6036424101.

The spelling of 1316664 in words is "one million, three hundred sixteen thousand, six hundred sixty-four".