441402321 has 4 divisors (see below), whose sum is σ = 588536432. Its totient is φ = 294268212.

The previous prime is 441402271. The next prime is 441402371. The reversal of 441402321 is 123204144.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (441402271) and next prime (441402371).

It is not a de Polignac number, because 441402321 - 2⁶ = 441402257 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (441402371) 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, 73567051 + ... + 73567056.

It is an arithmetic number, because the mean of its divisors is an integer number (147134108).

Almost surely, 2^441402321 is an apocalyptic number.

It is an amenable number.

441402321 is a deficient number, since it is larger than the sum of its proper divisors (147134111).

441402321 is a wasteful number, since it uses less digits than its factorization.

441402321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147134110.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 441402321 is about 21009.5768876958. The cubic root of 441402321 is about 761.3976595100.

Adding to 441402321 its reverse (123204144), we get a palindrome (564606465).

The spelling of 441402321 in words is "four hundred forty-one million, four hundred two thousand, three hundred twenty-one".