441004021 has 8 divisors (see below), whose sum is σ = 468184320. Its totient is φ = 413961408.

The previous prime is 441004009. The next prime is 441004027. The reversal of 441004021 is 120400144.

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

It is a cyclic number.

It is not a de Polignac number, because 441004021 - 2¹³ = 440995829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 441003986 and 441004004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441004027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27781 + ... + 40666.

It is an arithmetic number, because the mean of its divisors is an integer number (58523040).

Almost surely, 2^441004021 is an apocalyptic number.

It is an amenable number.

441004021 is a deficient number, since it is larger than the sum of its proper divisors (27180299).

441004021 is a wasteful number, since it uses less digits than its factorization.

441004021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68843.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 441004021 is about 21000.0957378770. The cubic root of 441004021 is about 761.1685745111.

Adding to 441004021 its reverse (120400144), we get a palindrome (561404165).

The spelling of 441004021 in words is "four hundred forty-one million, four thousand, twenty-one".