321404 has 12 divisors (see below), whose sum is σ = 592200. Its totient is φ = 152208.

The previous prime is 321403. The next prime is 321413. The reversal of 321404 is 404123.

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 321404.

It is not an unprimeable number, because it can be changed into a prime (321403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2039 + ... + 2190.

It is an arithmetic number, because the mean of its divisors is an integer number (49350).

2³²¹⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

321404 is a deficient number, since it is larger than the sum of its proper divisors (270796).

321404 is a wasteful number, since it uses less digits than its factorization.

321404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252 (or 4250 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 321404 is about 566.9250391366. The cubic root of 321404 is about 68.4989255164.

Adding to 321404 its reverse (404123), we get a palindrome (725527).

The spelling of 321404 in words is "three hundred twenty-one thousand, four hundred four", and thus it is an iban number.