4080656 has 40 divisors (see below), whose sum is σ = 8326104. Its totient is φ = 1935360.

The previous prime is 4080647. The next prime is 4080679. The reversal of 4080656 is 6560804.

It can be written as a sum of positive squares in 4 ways, for example, as 256 + 4080400 = 16^2 + 2020^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36056 + ... + 36168.

Almost surely, 2^4080656 is an apocalyptic number.

It is an amenable number.

4080656 is an abundant number, since it is smaller than the sum of its proper divisors (4245448).

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

4080656 is a wasteful number, since it uses less digits than its factorization.

4080656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 4080656 is about 2020.0633653428. The cubic root of 4080656 is about 159.7999583334.

The spelling of 4080656 in words is "four million, eighty thousand, six hundred fifty-six".