4444444818 has 24 divisors (see below), whose sum is σ = 10505051856. Its totient is φ = 1346801400.

The previous prime is 4444444817. The next prime is 4444444871. The reversal of 4444444818 is 8184444444.

It is not an unprimeable number, because it can be changed into a prime (4444444817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11223148 + ... + 11223543.

It is an arithmetic number, because the mean of its divisors is an integer number (437710494).

Almost surely, 2^4444444818 is an apocalyptic number.

4444444818 is an abundant number, since it is smaller than the sum of its proper divisors (6060607038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4444444818 is a wasteful number, since it uses less digits than its factorization.

4444444818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22446710 (or 22446707 counting only the distinct ones).

The product of its digits is 1048576, while the sum is 45.

The square root of 4444444818 is about 66666.6694683333. The cubic root of 4444444818 is about 1644.1414289503.

The spelling of 4444444818 in words is "four billion, four hundred forty-four million, four hundred forty-four thousand, eight hundred eighteen".