9438623040 has 1344 divisors, whose sum is σ = 42780752640. Its totient is φ = 1734082560.

The previous prime is 9438623021. The next prime is 9438623071. The reversal of 9438623040 is 403268349.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a self number, because there is not a number n which added to its sum of digits gives 9438623040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 255097902 + ... + 255097938.

Almost surely, 2^9438623040 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 9438623040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21390376320).

9438623040 is an abundant number, since it is smaller than the sum of its proper divisors (33342129600).

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

9438623040 is a wasteful number, since it uses less digits than its factorization.

9438623040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 9438623040 is about 97152.5760852485. The cubic root of 9438623040 is about 2113.3408467879.

The spelling of 9438623040 in words is "nine billion, four hundred thirty-eight million, six hundred twenty-three thousand, forty".