8189444 has 24 divisors (see below), whose sum is σ = 15367968. Its totient is φ = 3804800.

The previous prime is 8189443. The next prime is 8189453. The reversal of 8189444 is 4449818.

It is a junction number, because it is equal to n+sod(n) for n = 8189398 and 8189407.

It is not an unprimeable number, because it can be changed into a prime (8189443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4919 + ... + 6369.

It is an arithmetic number, because the mean of its divisors is an integer number (640332).

Almost surely, 2^8189444 is an apocalyptic number.

It is an amenable number.

8189444 is a deficient number, since it is larger than the sum of its proper divisors (7178524).

8189444 is a wasteful number, since it uses less digits than its factorization.

8189444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555 (or 1553 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 8189444 is about 2861.7204615406. The cubic root of 8189444 is about 201.5663999285.

The spelling of 8189444 in words is "eight million, one hundred eighty-nine thousand, four hundred forty-four".