4040784566 has 32 divisors (see below), whose sum is σ = 7586369280. Its totient is φ = 1571453856.

The previous prime is 4040784563. The next prime is 4040784577. The reversal of 4040784566 is 6654870404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040784563) 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 15 ways as a sum of consecutive naturals, for example, 177416 + ... + 198891.

It is an arithmetic number, because the mean of its divisors is an integer number (237074040).

Almost surely, 2^4040784566 is an apocalyptic number.

4040784566 is a deficient number, since it is larger than the sum of its proper divisors (3545584714).

4040784566 is a wasteful number, since it uses less digits than its factorization.

4040784566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376388.

The product of its (nonzero) digits is 645120, while the sum is 44.

The square root of 4040784566 is about 63567.1657854902. The cubic root of 4040784566 is about 1592.7779405737. Note that the first 3 decimals are identical.

The spelling of 4040784566 in words is "four billion, forty million, seven hundred eighty-four thousand, five hundred sixty-six".