6081640 has 16 divisors (see below), whose sum is σ = 13683780. Its totient is φ = 2432640.

The previous prime is 6081629. The next prime is 6081671. The reversal of 6081640 is 461806.

It can be written as a sum of positive squares in 2 ways, for example, as 6081156 + 484 = 2466^2 + 22^2 .

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75981 + ... + 76060.

Almost surely, 2^6081640 is an apocalyptic number.

It is an amenable number.

6081640 is an abundant number, since it is smaller than the sum of its proper divisors (7602140).

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

6081640 is a wasteful number, since it uses less digits than its factorization.

6081640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152052 (or 152048 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 6081640 is about 2466.0981326784. The cubic root of 6081640 is about 182.5325143795.

The spelling of 6081640 in words is "six million, eighty-one thousand, six hundred forty".