9479557440 has 224 divisors, whose sum is σ = 33505810560. Its totient is φ = 2523045888.

The previous prime is 9479557429. The next prime is 9479557469. The reversal of 9479557440 is 447559749.

9479557440 is a `hidden beast` number, since 9 + 47 + 9 + 557 + 4 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 8440719 + ... + 8441841.

Almost surely, 2^9479557440 is an apocalyptic number.

9479557440 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9479557440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16752905280).

9479557440 is an abundant number, since it is smaller than the sum of its proper divisors (24026253120).

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

9479557440 is a wasteful number, since it uses less digits than its factorization.

9479557440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126 (or 2110 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The square root of 9479557440 is about 97363.0188521289. The cubic root of 9479557440 is about 2116.3915594534.

The spelling of 9479557440 in words is "nine billion, four hundred seventy-nine million, five hundred fifty-seven thousand, four hundred forty".