8420875320 has 512 divisors, whose sum is σ = 31039303680. Its totient is φ = 1800314880.

The previous prime is 8420875271. The next prime is 8420875327. The reversal of 8420875320 is 235780248.

It is a super-2 number, since 2×8420875320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8420875327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 42745462 + ... + 42745658.

It is an arithmetic number, because the mean of its divisors is an integer number (60623640).

Almost surely, 2^8420875320 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 8420875320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15519651840).

8420875320 is an abundant number, since it is smaller than the sum of its proper divisors (22618428360).

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

8420875320 is a wasteful number, since it uses less digits than its factorization.

8420875320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 8420875320 is about 91765.3274390715. The cubic root of 8420875320 is about 2034.4752570476.

The spelling of 8420875320 in words is "eight billion, four hundred twenty million, eight hundred seventy-five thousand, three hundred twenty".