321344441 has 16 divisors (see below), whose sum is σ = 354974400. Its totient is φ = 288475200.

The previous prime is 321344437. The next prime is 321344531. The reversal of 321344441 is 144443123.

It is a cyclic number.

It is not a de Polignac number, because 321344441 - 2² = 321344437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321344441.

It is not an unprimeable number, because it can be changed into a prime (321344341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387215 + ... + 388043.

It is an arithmetic number, because the mean of its divisors is an integer number (22185900).

Almost surely, 2^321344441 is an apocalyptic number.

It is an amenable number.

321344441 is a deficient number, since it is larger than the sum of its proper divisors (33629959).

321344441 is a wasteful number, since it uses less digits than its factorization.

321344441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240.

The product of its digits is 4608, while the sum is 26.

The square root of 321344441 is about 17926.0827009138. The cubic root of 321344441 is about 684.9469410303.

Adding to 321344441 its reverse (144443123), we get a palindrome (465787564).

The spelling of 321344441 in words is "three hundred twenty-one million, three hundred forty-four thousand, four hundred forty-one".