441243021 has 8 divisors (see below), whose sum is σ = 589684480. Its totient is φ = 293481792.

The previous prime is 441242993. The next prime is 441243029. The reversal of 441243021 is 120342144.

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

It is not a de Polignac number, because 441243021 - 2¹⁴ = 441226637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441243029) 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, 168541 + ... + 171138.

It is an arithmetic number, because the mean of its divisors is an integer number (73710560).

Almost surely, 2^441243021 is an apocalyptic number.

It is an amenable number.

441243021 is a deficient number, since it is larger than the sum of its proper divisors (148441459).

441243021 is a wasteful number, since it uses less digits than its factorization.

441243021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340115.

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

The square root of 441243021 is about 21005.7854173559. The cubic root of 441243021 is about 761.3060535567.

Adding to 441243021 its reverse (120342144), we get a palindrome (561585165).

The spelling of 441243021 in words is "four hundred forty-one million, two hundred forty-three thousand, twenty-one".