8061285240 has 160 divisors (see below), whose sum is σ = 27197818560. Its totient is φ = 2141510400.

The previous prime is 8061285217. The next prime is 8061285241. The reversal of 8061285240 is 425821608.

8061285240 is a `hidden beast` number, since 8 + 0 + 6 + 128 + 524 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 8061285195 and 8061285204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8061285241) 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 39 ways as a sum of consecutive naturals, for example, 873450 + ... + 882630.

It is an arithmetic number, because the mean of its divisors is an integer number (169986366).

Almost surely, 2^8061285240 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 8061285240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13598909280).

8061285240 is an abundant number, since it is smaller than the sum of its proper divisors (19136533320).

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

8061285240 is a wasteful number, since it uses less digits than its factorization.

8061285240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9475 (or 9462 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 8061285240 is about 89784.6603824952. The cubic root of 8061285240 is about 2005.0941173017.

The spelling of 8061285240 in words is "eight billion, sixty-one million, two hundred eighty-five thousand, two hundred forty".