8420105286 has 48 divisors (see below), whose sum is σ = 18679826880. Its totient is φ = 2739668400.

The previous prime is 8420105257. The next prime is 8420105297. The reversal of 8420105286 is 6825010248.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8420105286.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1808061 + ... + 1812711.

It is an arithmetic number, because the mean of its divisors is an integer number (389163060).

Almost surely, 2^8420105286 is an apocalyptic number.

8420105286 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

8420105286 is an abundant number, since it is smaller than the sum of its proper divisors (10259721594).

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

8420105286 is a wasteful number, since it uses less digits than its factorization.

8420105286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7041 (or 7038 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 8420105286 is about 91761.1316734923. The cubic root of 8420105286 is about 2034.4132420031.

The spelling of 8420105286 in words is "eight billion, four hundred twenty million, one hundred five thousand, two hundred eighty-six".