8453934720 has 768 divisors, whose sum is σ = 37234080000. Its totient is φ = 1752145920.

The previous prime is 8453934667. The next prime is 8453934721. The reversal of 8453934720 is 274393548.

8453934720 is a `hidden beast` number, since 84 + 539 + 34 + 7 + 2 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (8453934721) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21732286 + ... + 21732674.

It is an arithmetic number, because the mean of its divisors is an integer number (48481875).

Almost surely, 2^8453934720 is an apocalyptic number.

8453934720 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 8453934720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18617040000).

8453934720 is an abundant number, since it is smaller than the sum of its proper divisors (28780145280).

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

8453934720 is a wasteful number, since it uses less digits than its factorization.

8453934720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 8453934720 is about 91945.2811187176. The cubic root of 8453934720 is about 2037.1341534915.

The spelling of 8453934720 in words is "eight billion, four hundred fifty-three million, nine hundred thirty-four thousand, seven hundred twenty".