244410021 has 8 divisors (see below), whose sum is σ = 362088960. Its totient is φ = 162939996.

The previous prime is 244410013. The next prime is 244410041. The reversal of 244410021 is 120014442.

244410021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 244410021 - 2³ = 244410013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 244409976 and 244410003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244410041) 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, 4526085 + ... + 4526138.

It is an arithmetic number, because the mean of its divisors is an integer number (45261120).

Almost surely, 2^244410021 is an apocalyptic number.

It is an amenable number.

244410021 is a deficient number, since it is larger than the sum of its proper divisors (117678939).

244410021 is an equidigital number, since it uses as much as digits as its factorization.

244410021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9052232 (or 9052226 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 244410021 is about 15633.6182951996. The cubic root of 244410021 is about 625.2298000834.

Adding to 244410021 its reverse (120014442), we get a palindrome (364424463).

The spelling of 244410021 in words is "two hundred forty-four million, four hundred ten thousand, twenty-one".