8724220280 has 64 divisors (see below), whose sum is σ = 19893263040. Its totient is φ = 3443110912.

The previous prime is 8724220273. The next prime is 8724220303. The reversal of 8724220280 is 820224278.

It is a super-2 number, since 2×8724220280² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8724220280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 910394 + ... + 919926.

It is an arithmetic number, because the mean of its divisors is an integer number (310832235).

Almost surely, 2^8724220280 is an apocalyptic number.

It is an amenable number.

8724220280 is an abundant number, since it is smaller than the sum of its proper divisors (11169042760).

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

8724220280 is a wasteful number, since it uses less digits than its factorization.

8724220280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9848 (or 9844 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 8724220280 is about 93403.5346226255. The cubic root of 8724220280 is about 2058.6169338216.

The spelling of 8724220280 in words is "eight billion, seven hundred twenty-four million, two hundred twenty thousand, two hundred eighty".