1056805684 has 12 divisors (see below), whose sum is σ = 2017538208. Its totient is φ = 480366200.

The previous prime is 1056805667. The next prime is 1056805727. The reversal of 1056805684 is 4865086501.

It is a super-2 number, since 2×1056805684² = 2233676507469415712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1056805684.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12009112 + ... + 12009199.

It is an arithmetic number, because the mean of its divisors is an integer number (168128184).

Almost surely, 2^1056805684 is an apocalyptic number.

It is an amenable number.

1056805684 is a deficient number, since it is larger than the sum of its proper divisors (960732524).

1056805684 is a wasteful number, since it uses less digits than its factorization.

1056805684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24018326 (or 24018324 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 1056805684 is about 32508.5478605243. The cubic root of 1056805684 is about 1018.5875888786.

The spelling of 1056805684 in words is "one billion, fifty-six million, eight hundred five thousand, six hundred eighty-four".