12056778 has 24 divisors (see below), whose sum is σ = 26217828. Its totient is φ = 4004352.

The previous prime is 12056777. The next prime is 12056789. The reversal of 12056778 is 87765021.

12056778 is a `hidden beast` number, since 1 + 20 + 567 + 78 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7634169 + 4422609 = 2763^2 + 2103^2 .

It is not an unprimeable number, because it can be changed into a prime (12056771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4650 + ... + 6762.

Almost surely, 2^12056778 is an apocalyptic number.

12056778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12056778 is an abundant number, since it is smaller than the sum of its proper divisors (14161050).

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

12056778 is a wasteful number, since it uses less digits than its factorization.

12056778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 12056778 is about 3472.2871425042. The cubic root of 12056778 is about 229.3033615472.

The spelling of 12056778 in words is "twelve million, fifty-six thousand, seven hundred seventy-eight".