320475 has 12 divisors (see below), whose sum is σ = 529976. Its totient is φ = 170880.

The previous prime is 320471. The next prime is 320477. The reversal of 320475 is 574023.

It is a happy number.

It is not a de Polignac number, because 320475 - 2² = 320471 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320475.

It is not an unprimeable number, because it can be changed into a prime (320471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2062 + ... + 2211.

2³²⁰⁴⁷⁵ is an apocalyptic number.

320475 is a deficient number, since it is larger than the sum of its proper divisors (209501).

320475 is a wasteful number, since it uses less digits than its factorization.

320475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286 (or 4281 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 320475 is about 566.1051139144. The cubic root of 320475 is about 68.4328644094.

Adding to 320475 its reverse (574023), we get a palindrome (894498).

It can be divided in two parts, 3 and 20475, that multiplied together give a triangular number (61425 = T₃₅₀).

The spelling of 320475 in words is "three hundred twenty thousand, four hundred seventy-five".