4244121849 has 16 divisors (see below), whose sum is σ = 6192757440. Its totient is φ = 2564074560.

The previous prime is 4244121829. The next prime is 4244121853. The reversal of 4244121849 is 9481214424.

It is a happy number.

It is not a de Polignac number, because 4244121849 - 2¹⁵ = 4244089081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4244121809) 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 15 ways as a sum of consecutive naturals, for example, 192394 + ... + 213315.

It is an arithmetic number, because the mean of its divisors is an integer number (387047340).

Almost surely, 2^4244121849 is an apocalyptic number.

It is an amenable number.

4244121849 is a deficient number, since it is larger than the sum of its proper divisors (1948635591).

4244121849 is a wasteful number, since it uses less digits than its factorization.

4244121849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406040.

The product of its digits is 73728, while the sum is 39.

The square root of 4244121849 is about 65146.9250924401. The cubic root of 4244121849 is about 1619.0587746195.

The spelling of 4244121849 in words is "four billion, two hundred forty-four million, one hundred twenty-one thousand, eight hundred forty-nine".