4401004421252 has 12 divisors (see below), whose sum is σ = 7720051701516. Its totient is φ = 2195275363680.

The previous prime is 4401004421239. The next prime is 4401004421269. The reversal of 4401004421252 is 2521244001044.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 90422895616 + 4310581525636 = 300704^2 + 2076194^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1306709843 + ... + 1306713210.

It is an arithmetic number, because the mean of its divisors is an integer number (643337641793).

Almost surely, 2^{4401004421252} is an apocalyptic number.

It is an amenable number.

4401004421252 is a deficient number, since it is larger than the sum of its proper divisors (3319047280264).

4401004421252 is a wasteful number, since it uses less digits than its factorization.

4401004421252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613423478 (or 2613423476 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 4401004421252 its reverse (2521244001044), we get a palindrome (6922248422296).

The spelling of 4401004421252 in words is "four trillion, four hundred one billion, four million, four hundred twenty-one thousand, two hundred fifty-two".