4444891156 has 12 divisors (see below), whose sum is σ = 7801643668. Its totient is φ = 2215850112.

The previous prime is 4444891079. The next prime is 4444891159. The reversal of 4444891156 is 6511984444.

It can be written as a sum of positive squares in 2 ways, for example, as 2740522500 + 1704368656 = 52350^2 + 41284^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444891159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1647351 + ... + 1650046.

Almost surely, 2^4444891156 is an apocalyptic number.

It is an amenable number.

4444891156 is a deficient number, since it is larger than the sum of its proper divisors (3356752512).

4444891156 is a wasteful number, since it uses less digits than its factorization.

4444891156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297738 (or 3297736 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 4444891156 is about 66670.0169191519. The cubic root of 4444891156 is about 1644.1964653132.

The spelling of 4444891156 in words is "four billion, four hundred forty-four million, eight hundred ninety-one thousand, one hundred fifty-six".