8444517940 has 48 divisors (see below), whose sum is σ = 18014814720. Its totient is φ = 3324529280.

The previous prime is 8444517937. The next prime is 8444517941. The reversal of 8444517940 is 497154448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8444517941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437085 + ... + 455995.

It is an arithmetic number, because the mean of its divisors is an integer number (375308640).

Almost surely, 2^8444517940 is an apocalyptic number.

It is an amenable number.

8444517940 is an abundant number, since it is smaller than the sum of its proper divisors (9570296780).

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

8444517940 is a wasteful number, since it uses less digits than its factorization.

8444517940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19272 (or 19270 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 8444517940 is about 91894.0582409984. The cubic root of 8444517940 is about 2036.3774892125.

The spelling of 8444517940 in words is "eight billion, four hundred forty-four million, five hundred seventeen thousand, nine hundred forty".