8442520444 has 12 divisors (see below), whose sum is σ = 14909956600. Its totient is φ = 4182532848.

The previous prime is 8442520441. The next prime is 8442520487. The reversal of 8442520444 is 4440252448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8442520441) 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, 9681354 + ... + 9682225.

Almost surely, 2^8442520444 is an apocalyptic number.

It is an amenable number.

8442520444 is a deficient number, since it is larger than the sum of its proper divisors (6467436156).

8442520444 is a wasteful number, since it uses less digits than its factorization.

8442520444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19363692 (or 19363690 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 37.

The square root of 8442520444 is about 91883.1891261944. The cubic root of 8442520444 is about 2036.2169125841.

The spelling of 8442520444 in words is "eight billion, four hundred forty-two million, five hundred twenty thousand, four hundred forty-four".