1304304 has 40 divisors (see below), whose sum is σ = 3489360. Its totient is φ = 419328.

The previous prime is 1304299. The next prime is 1304309. The reversal of 1304304 is 4034031.

It is an interprime number because it is at equal distance from previous prime (1304299) and next prime (1304309).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924 + ... + 1860.

It is an arithmetic number, because the mean of its divisors is an integer number (87234).

2^1304304 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 1304304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1744680).

1304304 is an abundant number, since it is smaller than the sum of its proper divisors (2185056).

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

1304304 is a wasteful number, since it uses less digits than its factorization.

1304304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1304304 is about 1142.0612943271. The cubic root of 1304304 is about 109.2596006274.

Adding to 1304304 its reverse (4034031), we get a palindrome (5338335).

The spelling of 1304304 in words is "one million, three hundred four thousand, three hundred four".