8227842840 has 640 divisors, whose sum is σ = 33880896000. Its totient is φ = 1770999552.

The previous prime is 8227842829. The next prime is 8227842899. The reversal of 8227842840 is 482487228.

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 polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 49268437 + ... + 49268603.

It is an arithmetic number, because the mean of its divisors is an integer number (52938900).

Almost surely, 2^8227842840 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 8227842840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16940448000).

8227842840 is an abundant number, since it is smaller than the sum of its proper divisors (25653053160).

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

8227842840 is a wasteful number, since it uses less digits than its factorization.

8227842840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 45.

The square root of 8227842840 is about 90707.4574662966. The cubic root of 8227842840 is about 2018.8094510507.

The spelling of 8227842840 in words is "eight billion, two hundred twenty-seven million, eight hundred forty-two thousand, eight hundred forty".