1304788 has 12 divisors (see below), whose sum is σ = 2301012. Its totient is φ = 647360.

The previous prime is 1304783. The next prime is 1304803. The reversal of 1304788 is 8874031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 248004 + 1056784 = 498^2 + 1028^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643 + ... + 1738.

It is an arithmetic number, because the mean of its divisors is an integer number (191751).

2^1304788 is an apocalyptic number.

It is an amenable number.

1304788 is a deficient number, since it is larger than the sum of its proper divisors (996224).

1304788 is a wasteful number, since it uses less digits than its factorization.

1304788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522 (or 2520 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1304788 is about 1142.2731722316. The cubic root of 1304788 is about 109.2731136088.

The spelling of 1304788 in words is "one million, three hundred four thousand, seven hundred eighty-eight".