8421860352 has 88 divisors (see below), whose sum is σ = 23628930400. Its totient is φ = 2659516416.

The previous prime is 8421860311. The next prime is 8421860353. The reversal of 8421860352 is 2530681248.

It is a self number, because there is not a number n which added to its sum of digits gives 8421860352.

It is not an unprimeable number, because it can be changed into a prime (8421860353) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13777 + ... + 130512.

Almost surely, 2^8421860352 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 8421860352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11814465200).

8421860352 is an abundant number, since it is smaller than the sum of its proper divisors (15207070048).

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

8421860352 is a wasteful number, since it uses less digits than its factorization.

8421860352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144331 (or 144313 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 8421860352 is about 91770.6944073107. The cubic root of 8421860352 is about 2034.5545815446.

The spelling of 8421860352 in words is "eight billion, four hundred twenty-one million, eight hundred sixty thousand, three hundred fifty-two".