1316304 has 80 divisors (see below), whose sum is σ = 4136640. Its totient is φ = 397440.

The previous prime is 1316303. The next prime is 1316311. The reversal of 1316304 is 4036131.

1316304 is a `hidden beast` number, since 1 + 31 + 630 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4614 + ... + 4890.

It is an arithmetic number, because the mean of its divisors is an integer number (51708).

2^1316304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1316304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2068320).

1316304 is an abundant number, since it is smaller than the sum of its proper divisors (2820336).

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

1316304 is a wasteful number, since it uses less digits than its factorization.

1316304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1316304 is about 1147.3029242532. The cubic root of 1316304 is about 109.5936522866.

The spelling of 1316304 in words is "one million, three hundred sixteen thousand, three hundred four".