1056012728 has 64 divisors (see below), whose sum is σ = 2130861600. Its totient is φ = 489646080.

The previous prime is 1056012703. The next prime is 1056012751. The reversal of 1056012728 is 8272106501.

It is a super-2 number, since 2×1056012728² = 2230325763396003968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056012694 and 1056012703.

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 15 ways as a sum of consecutive naturals, for example, 636476 + ... + 638132.

Almost surely, 2^1056012728 is an apocalyptic number.

It is an amenable number.

1056012728 is an abundant number, since it is smaller than the sum of its proper divisors (1074848872).

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

1056012728 is a wasteful number, since it uses less digits than its factorization.

1056012728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 1056012728 is about 32496.3494565159. The cubic root of 1056012728 is about 1018.3327652309.

The spelling of 1056012728 in words is "one billion, fifty-six million, twelve thousand, seven hundred twenty-eight".