163444844 has 12 divisors (see below), whose sum is σ = 286944504. Its totient is φ = 81460704.

The previous prime is 163444843. The next prime is 163444847. The reversal of 163444844 is 448444361.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 163444798 and 163444807.

It is not an unprimeable number, because it can be changed into a prime (163444843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64022 + ... + 66525.

It is an arithmetic number, because the mean of its divisors is an integer number (23912042).

Almost surely, 2^163444844 is an apocalyptic number.

It is an amenable number.

163444844 is a deficient number, since it is larger than the sum of its proper divisors (123499660).

163444844 is a wasteful number, since it uses less digits than its factorization.

163444844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130864 (or 130862 counting only the distinct ones).

The product of its digits is 147456, while the sum is 38.

The square root of 163444844 is about 12784.5549003475. The cubic root of 163444844 is about 546.7520352171.

The spelling of 163444844 in words is "one hundred sixty-three million, four hundred forty-four thousand, eight hundred forty-four".