1304856 has 64 divisors (see below), whose sum is σ = 4147200. Its totient is φ = 372384.

The previous prime is 1304837. The next prime is 1304857. The reversal of 1304856 is 6584031.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304857) 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, 1081 + ... + 1943.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2^1304856 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 1304856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2073600).

1304856 is an abundant number, since it is smaller than the sum of its proper divisors (2842344).

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

1304856 is a wasteful number, since it uses less digits than its factorization.

1304856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1304856 is about 1142.3029370530. The cubic root of 1304856 is about 109.2750118591.

Adding to 1304856 its reverse (6584031), we get a palindrome (7888887).

The spelling of 1304856 in words is "one million, three hundred four thousand, eight hundred fifty-six".