403220 has 12 divisors (see below), whose sum is σ = 846804. Its totient is φ = 161280.

The previous prime is 403219. The next prime is 403241. The reversal of 403220 is 22304.

It can be written as a sum of positive squares in 2 ways, for example, as 204304 + 198916 = 452^2 + 446^2 .

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 403220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10061 + ... + 10100.

It is an arithmetic number, because the mean of its divisors is an integer number (70567).

2⁴⁰³²²⁰ is an apocalyptic number.

It is an amenable number.

403220 is an abundant number, since it is smaller than the sum of its proper divisors (443584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

403220 is a wasteful number, since it uses less digits than its factorization.

403220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20170 (or 20168 counting only the distinct ones).

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

The square root of 403220 is about 634.9960629799. The cubic root of 403220 is about 73.8778115022.

Adding to 403220 its reverse (22304), we get a palindrome (425524).

The spelling of 403220 in words is "four hundred three thousand, two hundred twenty", and thus it is an iban number.