8429770944 has 84 divisors (see below), whose sum is σ = 27614203344. Its totient is φ = 2408504832.

The previous prime is 8429770891. The next prime is 8429770949. The reversal of 8429770944 is 4490779248.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (84).

It is a super-2 number, since 2×8429770944² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8429770949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1041327 + ... + 1049390.

It is an arithmetic number, because the mean of its divisors is an integer number (328740516).

Almost surely, 2^8429770944 is an apocalyptic number.

8429770944 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

8429770944 is an abundant number, since it is smaller than the sum of its proper divisors (19184432400).

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

8429770944 is a wasteful number, since it uses less digits than its factorization.

8429770944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090742 (or 2090729 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 8429770944 is about 91813.7840631787. The cubic root of 8429770944 is about 2035.1913962939.

The spelling of 8429770944 in words is "eight billion, four hundred twenty-nine million, seven hundred seventy thousand, nine hundred forty-four".