9309990344 has 8 divisors (see below), whose sum is σ = 17456231910. Its totient is φ = 4654995168.

The previous prime is 9309990343. The next prime is 9309990359. The reversal of 9309990344 is 4430999039.

9309990344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4826080900 + 4483909444 = 69470^2 + 66962^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 9309990292 and 9309990301.

It is not an unprimeable number, because it can be changed into a prime (9309990343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581874389 + ... + 581874404.

Almost surely, 2^9309990344 is an apocalyptic number.

It is an amenable number.

9309990344 is a deficient number, since it is larger than the sum of its proper divisors (8146241566).

9309990344 is a wasteful number, since it uses less digits than its factorization.

9309990344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163748799 (or 1163748795 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 50.

The square root of 9309990344 is about 96488.2912274852. The cubic root of 9309990344 is about 2103.6964634382.

The spelling of 9309990344 in words is "nine billion, three hundred nine million, nine hundred ninety thousand, three hundred forty-four".