1320333409 has 8 divisors (see below), whose sum is σ = 1327736448. Its totient is φ = 1312949520.

The previous prime is 1320333383. The next prime is 1320333433. The reversal of 1320333409 is 9043330231.

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 1320333409 - 2⁷ = 1320333281 is a prime.

It is a super-2 number, since 2×1320333409² = 3486560621843122562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320333479) 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, 146574 + ... + 155320.

It is an arithmetic number, because the mean of its divisors is an integer number (165967056).

Almost surely, 2^1320333409 is an apocalyptic number.

It is an amenable number.

1320333409 is a deficient number, since it is larger than the sum of its proper divisors (7403039).

1320333409 is an equidigital number, since it uses as much as digits as its factorization.

1320333409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9575.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 1320333409 is about 36336.3923498192. The cubic root of 1320333409 is about 1097.0536604827.

The spelling of 1320333409 in words is "one billion, three hundred twenty million, three hundred thirty-three thousand, four hundred nine".