244111421 has 4 divisors (see below), whose sum is σ = 244153500. Its totient is φ = 244069344.

The previous prime is 244111409. The next prime is 244111423. The reversal of 244111421 is 124111442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 108388921 + 135722500 = 10411^2 + 11650^2 .

It is a cyclic number.

It is not a de Polignac number, because 244111421 - 2¹⁴ = 244095037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244111393 and 244111402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244111423) 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, 10616 + ... + 24513.

It is an arithmetic number, because the mean of its divisors is an integer number (61038375).

Almost surely, 2^244111421 is an apocalyptic number.

It is an amenable number.

244111421 is a deficient number, since it is larger than the sum of its proper divisors (42079).

244111421 is an equidigital number, since it uses as much as digits as its factorization.

244111421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42078.

The product of its digits is 256, while the sum is 20.

The square root of 244111421 is about 15624.0654440514. The cubic root of 244111421 is about 624.9750782596.

Adding to 244111421 its reverse (124111442), we get a palindrome (368222863).

The spelling of 244111421 in words is "two hundred forty-four million, one hundred eleven thousand, four hundred twenty-one".