4404021253 has 8 divisors (see below), whose sum is σ = 4413196760. Its totient is φ = 4394856960.

The previous prime is 4404021247. The next prime is 4404021263. The reversal of 4404021253 is 3521204044.

It is a happy number.

4404021253 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1084187329 + 3319833924 = 32927^2 + 57618^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4404021253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4404021203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1409533 + ... + 1412653.

It is an arithmetic number, because the mean of its divisors is an integer number (551649595).

Almost surely, 2^4404021253 is an apocalyptic number.

It is an amenable number.

4404021253 is a deficient number, since it is larger than the sum of its proper divisors (9175507).

4404021253 is a wasteful number, since it uses less digits than its factorization.

4404021253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4404021253 is about 66362.8002197014. The cubic root of 4404021253 is about 1639.1415858874.

Adding to 4404021253 its reverse (3521204044), we get a palindrome (7925225297).

The spelling of 4404021253 in words is "four billion, four hundred four million, twenty-one thousand, two hundred fifty-three".