7081605240 has 64 divisors (see below), whose sum is σ = 22168512000. Its totient is φ = 1806321792.

The previous prime is 7081605227. The next prime is 7081605257. The reversal of 7081605240 is 425061807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1280140 + ... + 1285659.

It is an arithmetic number, because the mean of its divisors is an integer number (346383000).

Almost surely, 2^7081605240 is an apocalyptic number.

It is an amenable number.

7081605240 is an abundant number, since it is smaller than the sum of its proper divisors (15086906760).

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

7081605240 is a wasteful number, since it uses less digits than its factorization.

7081605240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565836 (or 2565832 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 7081605240 is about 84152.2741225690. The cubic root of 7081605240 is about 1920.3360631363.

The spelling of 7081605240 in words is "seven billion, eighty-one million, six hundred five thousand, two hundred forty".