9223439904 has 144 divisors (see below), whose sum is σ = 30542121792. Its totient is φ = 2585516544.

The previous prime is 9223439903. The next prime is 9223439977. The reversal of 9223439904 is 4099343229.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 9223439904.

It is not an unprimeable number, because it can be changed into a prime (9223439903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63687 + ... + 150009.

It is an arithmetic number, because the mean of its divisors is an integer number (212098068).

Almost surely, 2^9223439904 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 9223439904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15271060896).

9223439904 is an abundant number, since it is smaller than the sum of its proper divisors (21318681888).

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

9223439904 is a wasteful number, since it uses less digits than its factorization.

9223439904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86399 (or 86388 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 9223439904 is about 96038.7416827189. The cubic root of 9223439904 is about 2097.1571437215.

The spelling of 9223439904 in words is "nine billion, two hundred twenty-three million, four hundred thirty-nine thousand, nine hundred four".