320332401 has 20 divisors (see below), whose sum is σ = 488708352. Its totient is φ = 209008728.

The previous prime is 320332379. The next prime is 320332451. The reversal of 320332401 is 104233023.

It is not a de Polignac number, because 320332401 - 2¹⁰ = 320331377 is a prime.

It is a super-2 number, since 2×320332401² = 205225694260849602, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (320332451) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38265 + ... + 45878.

Almost surely, 2^320332401 is an apocalyptic number.

It is an amenable number.

320332401 is a deficient number, since it is larger than the sum of its proper divisors (168375951).

320332401 is an equidigital number, since it uses as much as digits as its factorization.

320332401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84202 (or 84193 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 320332401 is about 17897.8322989126. The cubic root of 320332401 is about 684.2271290956.

Adding to 320332401 its reverse (104233023), we get a palindrome (424565424).

The spelling of 320332401 in words is "three hundred twenty million, three hundred thirty-two thousand, four hundred one".