8256040272 has 60 divisors (see below), whose sum is σ = 23111835604. Its totient is φ = 2751252480.

The previous prime is 8256040267. The next prime is 8256040277. The reversal of 8256040272 is 2720406528.

8256040272 is a `hidden beast` number, since 8 + 25 + 604 + 0 + 27 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (8256040267) and next prime (8256040277).

It can be written as a sum of positive squares in 2 ways, for example, as 2215020096 + 6041020176 = 47064^2 + 77724^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8256040277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 798528 + ... + 808800.

Almost surely, 2^8256040272 is an apocalyptic number.

It is an amenable number.

8256040272 is an abundant number, since it is smaller than the sum of its proper divisors (14855795332).

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

8256040272 is a wasteful number, since it uses less digits than its factorization.

8256040272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15868 (or 15859 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 8256040272 is about 90862.7551420273. The cubic root of 8256040272 is about 2021.1130251398.

The spelling of 8256040272 in words is "eight billion, two hundred fifty-six million, forty thousand, two hundred seventy-two".