4044403121 has 8 divisors (see below), whose sum is σ = 4431345600. Its totient is φ = 3660672240.

The previous prime is 4044403117. The next prime is 4044403229. The reversal of 4044403121 is 1213044404.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4044403121 - 2² = 4044403117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4044403621) 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, 800261 + ... + 805298.

It is an arithmetic number, because the mean of its divisors is an integer number (553918200).

Almost surely, 2^4044403121 is an apocalyptic number.

It is an amenable number.

4044403121 is a deficient number, since it is larger than the sum of its proper divisors (386942479).

4044403121 is a wasteful number, since it uses less digits than its factorization.

4044403121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605799.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4044403121 is about 63595.6218697482. The cubic root of 4044403121 is about 1593.2532471967.

Adding to 4044403121 its reverse (1213044404), we get a palindrome (5257447525).

The spelling of 4044403121 in words is "four billion, forty-four million, four hundred three thousand, one hundred twenty-one".