441010021 has 4 divisors (see below), whose sum is σ = 451266112. Its totient is φ = 430753932.

The previous prime is 441010019. The next prime is 441010057. The reversal of 441010021 is 120010144.

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 a cyclic number.

It is not a de Polignac number, because 441010021 - 2¹ = 441010019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 441009983 and 441010010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441080021) 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, 5127981 + ... + 5128066.

It is an arithmetic number, because the mean of its divisors is an integer number (112816528).

Almost surely, 2^441010021 is an apocalyptic number.

It is an amenable number.

441010021 is a deficient number, since it is larger than the sum of its proper divisors (10256091).

441010021 is a wasteful number, since it uses less digits than its factorization.

441010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10256090.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 441010021 is about 21000.2385938827. The cubic root of 441010021 is about 761.1720264757.

Adding to 441010021 its reverse (120010144), we get a palindrome (561020165).

The spelling of 441010021 in words is "four hundred forty-one million, ten thousand, twenty-one".