321448 has 16 divisors (see below), whose sum is σ = 629280. Its totient is φ = 153648.

The previous prime is 321443. The next prime is 321449. The reversal of 321448 is 844123.

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

321448 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690 + ... + 1057.

It is an arithmetic number, because the mean of its divisors is an integer number (39330).

2³²¹⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

321448 is a deficient number, since it is larger than the sum of its proper divisors (307832).

321448 is a wasteful number, since it uses less digits than its factorization.

321448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 1772 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 321448 is about 566.9638436444. The cubic root of 321448 is about 68.5020511933.

The spelling of 321448 in words is "three hundred twenty-one thousand, four hundred forty-eight".