8447224320 has 480 divisors, whose sum is σ = 31243500288. Its totient is φ = 2185740288.

The previous prime is 8447224309. The next prime is 8447224327. The reversal of 8447224320 is 234227448.

It is a tau number, because it is divible by the number of its divisors (480).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (8447224327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23016777 + ... + 23017143.

Almost surely, 2^8447224320 is an apocalyptic number.

8447224320 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 8447224320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15621750144).

8447224320 is an abundant number, since it is smaller than the sum of its proper divisors (22796275968).

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

8447224320 is an equidigital number, since it uses as much as digits as its factorization.

8447224320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

The square root of 8447224320 is about 91908.7826053637. The cubic root of 8447224320 is about 2036.5950118977.

The spelling of 8447224320 in words is "eight billion, four hundred forty-seven million, two hundred twenty-four thousand, three hundred twenty".