8276438140 has 24 divisors (see below), whose sum is σ = 17403391152. Its totient is φ = 3306218880.

The previous prime is 8276438119. The next prime is 8276438141. The reversal of 8276438140 is 418346728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8276438141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256674 + ... + 287113.

It is an arithmetic number, because the mean of its divisors is an integer number (725141298).

Almost surely, 2^8276438140 is an apocalyptic number.

It is an amenable number.

8276438140 is an abundant number, since it is smaller than the sum of its proper divisors (9126953012).

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

8276438140 is a wasteful number, since it uses less digits than its factorization.

8276438140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544557 (or 544555 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 8276438140 is about 90974.9313822220. The cubic root of 8276438140 is about 2022.7761505500.

The spelling of 8276438140 in words is "eight billion, two hundred seventy-six million, four hundred thirty-eight thousand, one hundred forty".