8439070944 has 96 divisors (see below), whose sum is σ = 23191467264. Its totient is φ = 2681902080.

The previous prime is 8439070943. The next prime is 8439070949. The reversal of 8439070944 is 4490709348.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×8439070944² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 8439070893 and 8439070902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8439070943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684999 + ... + 697209.

It is an arithmetic number, because the mean of its divisors is an integer number (241577784).

Almost surely, 2^8439070944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8439070944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11595733632).

8439070944 is an abundant number, since it is smaller than the sum of its proper divisors (14752396320).

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

8439070944 is a wasteful number, since it uses less digits than its factorization.

8439070944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12560 (or 12552 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 8439070944 is about 91864.4160924131. The cubic root of 8439070944 is about 2035.9395512151.

The spelling of 8439070944 in words is "eight billion, four hundred thirty-nine million, seventy thousand, nine hundred forty-four".