1320056 has 16 divisors (see below), whose sum is σ = 2493240. Its totient is φ = 655200.

The previous prime is 1320037. The next prime is 1320061. The reversal of 1320056 is 6500231.

1320056 = T₄₃ + T₄₄ + ... + T₁₉₉.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731 + ... + 1781.

2^1320056 is an apocalyptic number.

It is an amenable number.

1320056 is a deficient number, since it is larger than the sum of its proper divisors (1173184).

1320056 is a wasteful number, since it uses less digits than its factorization.

1320056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1320056 is about 1148.9368999210. The cubic root of 1320056 is about 109.6976822851.

Adding to 1320056 its reverse (6500231), we get a palindrome (7820287).

The spelling of 1320056 in words is "one million, three hundred twenty thousand, fifty-six".