1320383 has 8 divisors (see below), whose sum is σ = 1376256. Its totient is φ = 1265400.

The previous prime is 1320379. The next prime is 1320391. The reversal of 1320383 is 3830231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320383 - 2² = 1320379 is a prime.

It is a super-2 number, since 2×1320383² = 3486822533378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5810 + ... + 6032.

It is an arithmetic number, because the mean of its divisors is an integer number (172032).

2^1320383 is an apocalyptic number.

1320383 is a deficient number, since it is larger than the sum of its proper divisors (55873).

1320383 is a wasteful number, since it uses less digits than its factorization.

1320383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1320383 is about 1149.0791965744. The cubic root of 1320383 is about 109.7067395222.

The spelling of 1320383 in words is "one million, three hundred twenty thousand, three hundred eighty-three".