244440003233421 has 48 divisors (see below), whose sum is σ = 381330334979568. Its totient is φ = 150322920652800.

The previous prime is 244440003233411. The next prime is 244440003233473. The reversal of 244440003233421 is 124332300044442.

244440003233421 is a `hidden beast` number, since 244 + 4 + 40 + 0 + 0 + 32 + 3 + 342 + 1 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 22012189641225 + 222427813592196 = 4691715^2 + 14914014^2 .

It is not a de Polignac number, because 244440003233421 - 2³⁸ = 244165125326477 is a prime.

It is a super-2 number, since 2×244440003233421² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244440003233411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43980516 + ... + 49225661.

It is an arithmetic number, because the mean of its divisors is an integer number (7944381978741).

Almost surely, 2^{244440003233421} is an apocalyptic number.

It is an amenable number.

244440003233421 is a deficient number, since it is larger than the sum of its proper divisors (136890331746147).

244440003233421 is a wasteful number, since it uses less digits than its factorization.

244440003233421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93206542 (or 93206539 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 244440003233421 its reverse (124332300044442), we get a palindrome (368772303277863).

The spelling of 244440003233421 in words is "two hundred forty-four trillion, four hundred forty billion, three million, two hundred thirty-three thousand, four hundred twenty-one".