1293328 has 10 divisors (see below), whose sum is σ = 2505854. Its totient is φ = 646656.

The previous prime is 1293323. The next prime is 1293329. The reversal of 1293328 is 8233921.

It can be written as a sum of positive squares in only one way, i.e., 1106704 + 186624 = 1052^2 + 432^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1293296 and 1293305.

It is not an unprimeable number, because it can be changed into a prime (1293323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40401 + ... + 40432.

2^1293328 is an apocalyptic number.

It is an amenable number.

1293328 is a deficient number, since it is larger than the sum of its proper divisors (1212526).

1293328 is an equidigital number, since it uses as much as digits as its factorization.

1293328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80841 (or 80835 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 1293328 is about 1137.2457957715. The cubic root of 1293328 is about 108.9522558345.

The spelling of 1293328 in words is "one million, two hundred ninety-three thousand, three hundred twenty-eight".