321441 has 8 divisors (see below), whose sum is σ = 432960. Its totient is φ = 212112.

The previous prime is 321427. The next prime is 321443. The reversal of 321441 is 144123.

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

It is not a de Polignac number, because 321441 - 2⁷ = 321313 is a prime.

321441 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 321441.

It is not an unprimeable number, because it can be changed into a prime (321443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165 + ... + 818.

It is an arithmetic number, because the mean of its divisors is an integer number (54120).

2³²¹⁴⁴¹ is an apocalyptic number.

It is an amenable number.

321441 is a deficient number, since it is larger than the sum of its proper divisors (111519).

321441 is a wasteful number, since it uses less digits than its factorization.

321441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095.

The product of its digits is 96, while the sum is 15.

The square root of 321441 is about 566.9576703776. The cubic root of 321441 is about 68.5015539456.

Adding to 321441 its reverse (144123), we get a palindrome (465564).

The spelling of 321441 in words is "three hundred twenty-one thousand, four hundred forty-one", and thus it is an iban number.