1320746 has 12 divisors (see below), whose sum is σ = 2304738. Its totient is φ = 565992.

The previous prime is 1320731. The next prime is 1320749. The reversal of 1320746 is 6470231.

It can be written as a sum of positive squares in only one way, i.e., 1030225 + 290521 = 1015^2 + 539^2 .

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1320749) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6641 + ... + 6836.

2^1320746 is an apocalyptic number.

1320746 is a deficient number, since it is larger than the sum of its proper divisors (983992).

1320746 is a wasteful number, since it uses less digits than its factorization.

1320746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13493 (or 13486 counting only the distinct ones).

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

The square root of 1320746 is about 1149.2371382791. The cubic root of 1320746 is about 109.7167921351.

Adding to 1320746 its reverse (6470231), we get a palindrome (7790977).

The spelling of 1320746 in words is "one million, three hundred twenty thousand, seven hundred forty-six".