1320836 has 18 divisors (see below), whose sum is σ = 2541630. Its totient is φ = 600160.

The previous prime is 1320811. The next prime is 1320859. The reversal of 1320836 is 6380231.

It can be written as a sum of positive squares in only one way, i.e., 1308736 + 12100 = 1144^2 + 110^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 881 + ... + 1848.

2^1320836 is an apocalyptic number.

It is an amenable number.

1320836 is a deficient number, since it is larger than the sum of its proper divisors (1220794).

1320836 is a wasteful number, since it uses less digits than its factorization.

1320836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755 (or 2742 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1320836 is about 1149.2762940216. The cubic root of 1320836 is about 109.7192842336.

The spelling of 1320836 in words is "one million, three hundred twenty thousand, eight hundred thirty-six".