1276304 has 10 divisors (see below), whose sum is σ = 2472870. Its totient is φ = 638144.

The previous prime is 1276279. The next prime is 1276307. The reversal of 1276304 is 4036721.

Added to its reverse (4036721) it gives a square (5313025 = 2305²).

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 21904 = 1120^2 + 148^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1276304.

It is not an unprimeable number, because it can be changed into a prime (1276307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39869 + ... + 39900.

It is an arithmetic number, because the mean of its divisors is an integer number (247287).

2^1276304 is an apocalyptic number.

It is an amenable number.

1276304 is a deficient number, since it is larger than the sum of its proper divisors (1196566).

1276304 is an equidigital number, since it uses as much as digits as its factorization.

1276304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79777 (or 79771 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1276304 is about 1129.7362524058. The cubic root of 1276304 is about 108.4720988378.

Adding to 1276304 its reverse (4036721), we get a square (5313025 = 2305²).

The spelling of 1276304 in words is "one million, two hundred seventy-six thousand, three hundred four".