1304648 has 32 divisors (see below), whose sum is σ = 2653560. Its totient is φ = 599040.

The previous prime is 1304627. The next prime is 1304659. The reversal of 1304648 is 8464031.

It can be written as a sum of positive squares in 4 ways, for example, as 1036324 + 268324 = 1018^2 + 518^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7118 + ... + 7298.

2^1304648 is an apocalyptic number.

It is an amenable number.

1304648 is an abundant number, since it is smaller than the sum of its proper divisors (1348912).

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

1304648 is a wasteful number, since it uses less digits than its factorization.

1304648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1304648 is about 1142.2118892745. The cubic root of 1304648 is about 109.2692052387.

Adding to 1304648 its reverse (8464031), we get a palindrome (9768679).

The spelling of 1304648 in words is "one million, three hundred four thousand, six hundred forty-eight".