8464919040 has 640 divisors, whose sum is σ = 32172940800. Its totient is φ = 2105671680.

The previous prime is 8464919017. The next prime is 8464919059. The reversal of 8464919040 is 409194648.

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 a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82183629 + ... + 82183731.

It is an arithmetic number, because the mean of its divisors is an integer number (50270220).

Almost surely, 2^8464919040 is an apocalyptic number.

8464919040 is a gapful number since it is divisible by the number (80) 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 8464919040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16086470400).

8464919040 is an abundant number, since it is smaller than the sum of its proper divisors (23708021760).

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

8464919040 is a wasteful number, since it uses less digits than its factorization.

8464919040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 8464919040 is about 92004.9946470299. The cubic root of 8464919040 is about 2038.0160642928.

The spelling of 8464919040 in words is "eight billion, four hundred sixty-four million, nine hundred nineteen thousand, forty".