9464394240 has 640 divisors, whose sum is σ = 39723171840. Its totient is φ = 2090188800.

The previous prime is 9464394229. The next prime is 9464394263. The reversal of 9464394240 is 424934649.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14998725 + ... + 14999355.

It is an arithmetic number, because the mean of its divisors is an integer number (62067456).

Almost surely, 2^9464394240 is an apocalyptic number.

9464394240 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 9464394240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19861585920).

9464394240 is an abundant number, since it is smaller than the sum of its proper divisors (30258777600).

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

9464394240 is a wasteful number, since it uses less digits than its factorization.

9464394240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The square root of 9464394240 is about 97285.1182864060. The cubic root of 9464394240 is about 2115.2625195995.

The spelling of 9464394240 in words is "nine billion, four hundred sixty-four million, three hundred ninety-four thousand, two hundred forty".