8159444 has 12 divisors (see below), whose sum is σ = 14323764. Its totient is φ = 4066944.

The previous prime is 8159443. The next prime is 8159467. The reversal of 8159444 is 4449518.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1295044 + 6864400 = 1138^2 + 2620^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8159441) 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, 1679 + ... + 4374.

It is an arithmetic number, because the mean of its divisors is an integer number (1193647).

Almost surely, 2^8159444 is an apocalyptic number.

It is an amenable number.

8159444 is a deficient number, since it is larger than the sum of its proper divisors (6164320).

8159444 is a wasteful number, since it uses less digits than its factorization.

8159444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6394 (or 6392 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 8159444 is about 2856.4740502935. The cubic root of 8159444 is about 201.3199692410.

The spelling of 8159444 in words is "eight million, one hundred fifty-nine thousand, four hundred forty-four".