8540347320 has 128 divisors (see below), whose sum is σ = 28520942400. Its totient is φ = 2273177088.

The previous prime is 8540347313. The next prime is 8540347339. The reversal of 8540347320 is 237430458.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 594462 + ... + 608658.

Almost surely, 2^8540347320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8540347320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14260471200).

8540347320 is an abundant number, since it is smaller than the sum of its proper divisors (19980595080).

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

8540347320 is a wasteful number, since it uses less digits than its factorization.

8540347320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14774 (or 14764 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 8540347320 is about 92413.9995888069. Note that the first 3 decimals coincide. The cubic root of 8540347320 is about 2044.0515501518.

Adding to 8540347320 its reverse (237430458), we get a palindrome (8777777778).

The spelling of 8540347320 in words is "eight billion, five hundred forty million, three hundred forty-seven thousand, three hundred twenty".