8444888440 has 16 divisors (see below), whose sum is σ = 19000999080. Its totient is φ = 3377955360.

The previous prime is 8444888429. The next prime is 8444888497. The reversal of 8444888440 is 448884448.

It is a super-2 number, since 2×8444888440² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105561066 + ... + 105561145.

Almost surely, 2^8444888440 is an apocalyptic number.

It is an amenable number.

8444888440 is an abundant number, since it is smaller than the sum of its proper divisors (10556110640).

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

8444888440 is a wasteful number, since it uses less digits than its factorization.

8444888440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211122222 (or 211122218 counting only the distinct ones).

The product of its (nonzero) digits is 4194304, while the sum is 52.

The square root of 8444888440 is about 91896.0741272444. The cubic root of 8444888440 is about 2036.4072705385.

The spelling of 8444888440 in words is "eight billion, four hundred forty-four million, eight hundred eighty-eight thousand, four hundred forty".