320403201 has 8 divisors (see below), whose sum is σ = 430278240. Its totient is φ = 212065152.

The previous prime is 320403173. The next prime is 320403203. The reversal of 320403201 is 102304023.

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

It is a de Polignac number, because none of the positive numbers 2^k-320403201 is a prime.

It is a super-2 number, since 2×320403201² = 205316422422092802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320403203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383760 + ... + 384593.

It is an arithmetic number, because the mean of its divisors is an integer number (53784780).

Almost surely, 2^320403201 is an apocalyptic number.

It is an amenable number.

320403201 is a deficient number, since it is larger than the sum of its proper divisors (109875039).

320403201 is a wasteful number, since it uses less digits than its factorization.

320403201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768495.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 320403201 is about 17899.8100827914. The cubic root of 320403201 is about 684.2775347701.

Adding to 320403201 its reverse (102304023), we get a palindrome (422707224).

The spelling of 320403201 in words is "three hundred twenty million, four hundred three thousand, two hundred one".