320402 has 4 divisors (see below), whose sum is σ = 480606. Its totient is φ = 160200.

The previous prime is 320401. The next prime is 320417. The reversal of 320402 is 204023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 312481 + 7921 = 559^2 + 89^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320402.

It is not an unprimeable number, because it can be changed into a prime (320401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80099 + ... + 80102.

2³²⁰⁴⁰² is an apocalyptic number.

320402 is a deficient number, since it is larger than the sum of its proper divisors (160204).

320402 is a wasteful number, since it uses less digits than its factorization.

320402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160203.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 320402 is about 566.0406345838. The cubic root of 320402 is about 68.4276679787.

Adding to 320402 its reverse (204023), we get a palindrome (524425).

The spelling of 320402 in words is "three hundred twenty thousand, four hundred two", and thus it is an iban number.