9478073920 has 504 divisors, whose sum is σ = 29500894008. Its totient is φ = 2879815680.

The previous prime is 9478073911. The next prime is 9478073953. The reversal of 9478073920 is 293708749.

It can be written as a sum of positive squares in 4 ways, for example, as 3905750016 + 5572323904 = 62496^2 + 74648^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 256164142 + ... + 256164178.

Almost surely, 2^9478073920 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 9478073920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14750447004).

9478073920 is an abundant number, since it is smaller than the sum of its proper divisors (20022820088).

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

9478073920 is a wasteful number, since it uses less digits than its factorization.

9478073920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 9478073920 is about 97355.4000556723. The cubic root of 9478073920 is about 2116.2811508883.

The spelling of 9478073920 in words is "nine billion, four hundred seventy-eight million, seventy-three thousand, nine hundred twenty".