8235000280 has 64 divisors (see below), whose sum is σ = 19987158240. Its totient is φ = 3035569152.

The previous prime is 8235000253. The next prime is 8235000287. The reversal of 8235000280 is 820005328.

8235000280 is a nontrivial binomial coefficient, being equal to C(128336, 2).

It is a super-2 number, since 2×8235000280² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8235000287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308007 + ... + 333673.

Almost surely, 2^8235000280 is an apocalyptic number.

8235000280 is the 128335-th triangular number and also the 64168-th hexagonal number.

8235000280 is the 42779-th centered nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8235000280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9993579120).

8235000280 is an abundant number, since it is smaller than the sum of its proper divisors (11752157960).

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

8235000280 is a wasteful number, since it uses less digits than its factorization.

8235000280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26308 (or 26304 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 8235000280 is about 90746.9023162774. The cubic root of 8235000280 is about 2019.3946720669.

The spelling of 8235000280 in words is "eight billion, two hundred thirty-five million, two hundred eighty", and thus it is an aban number.