4244413121 has 4 divisors (see below), whose sum is σ = 4570906452. Its totient is φ = 3917919792.

The previous prime is 4244413109. The next prime is 4244413127. The reversal of 4244413121 is 1213144424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 874030096 + 3370383025 = 29564^2 + 58055^2 .

It is a cyclic number.

It is not a de Polignac number, because 4244413121 - 2²² = 4240218817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4244413127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163246646 + ... + 163246671.

It is an arithmetic number, because the mean of its divisors is an integer number (1142726613).

Almost surely, 2^4244413121 is an apocalyptic number.

It is an amenable number.

4244413121 is a deficient number, since it is larger than the sum of its proper divisors (326493331).

4244413121 is a wasteful number, since it uses less digits than its factorization.

4244413121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326493330.

The product of its digits is 3072, while the sum is 26.

The square root of 4244413121 is about 65149.1605548375. The cubic root of 4244413121 is about 1619.0958121753.

Adding to 4244413121 its reverse (1213144424), we get a palindrome (5457557545).

The spelling of 4244413121 in words is "four billion, two hundred forty-four million, four hundred thirteen thousand, one hundred twenty-one".