8444440 has 32 divisors (see below), whose sum is σ = 19187280. Its totient is φ = 3344512.

The previous prime is 8444419. The next prime is 8444467. The reversal of 8444440 is 444448.

8444440 is nontrivially palindromic in base 11.

8444440 is an undulating number in base 11.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 8444399 and 8444408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3294 + ... + 5266.

Almost surely, 2^8444440 is an apocalyptic number.

It is an amenable number.

8444440 is an abundant number, since it is smaller than the sum of its proper divisors (10742840).

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

8444440 is a wasteful number, since it uses less digits than its factorization.

8444440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091 (or 2087 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

The square root of 8444440 is about 2905.9318643079. The cubic root of 8444440 is about 203.6371224172.

Adding to 8444440 its reverse (444448), we get a palindrome (8888888).

The spelling of 8444440 in words is "eight million, four hundred forty-four thousand, four hundred forty".