4448998121 has 8 divisors (see below), whose sum is σ = 4530237600. Its totient is φ = 4368416832.

The previous prime is 4448998117. The next prime is 4448998129. The reversal of 4448998121 is 1218998444.

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 4448998121 - 2² = 4448998117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4448998121.

It is not an unprimeable number, because it can be changed into a prime (4448998129) 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, 150896 + ... + 177953.

It is an arithmetic number, because the mean of its divisors is an integer number (566279700).

Almost surely, 2^4448998121 is an apocalyptic number.

It is an amenable number.

4448998121 is a deficient number, since it is larger than the sum of its proper divisors (81239479).

4448998121 is a wasteful number, since it uses less digits than its factorization.

4448998121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329095.

The product of its digits is 663552, while the sum is 50.

The square root of 4448998121 is about 66700.8104973245. The cubic root of 4448998121 is about 1644.7027078289.

The spelling of 4448998121 in words is "four billion, four hundred forty-eight million, nine hundred ninety-eight thousand, one hundred twenty-one".