1128580042 has 16 divisors (see below), whose sum is σ = 1714246272. Its totient is φ = 557202240.

The previous prime is 1128580001. The next prime is 1128580049. The reversal of 1128580042 is 2400858211.

It is a super-2 number, since 2×1128580042² = 2547385822401443528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1128579986 and 1128580013.

It is not an unprimeable number, because it can be changed into a prime (1128580049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52033 + ... + 70459.

It is an arithmetic number, because the mean of its divisors is an integer number (107140392).

Almost surely, 2^1128580042 is an apocalyptic number.

1128580042 is a deficient number, since it is larger than the sum of its proper divisors (585666230).

1128580042 is a wasteful number, since it uses less digits than its factorization.

1128580042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18813.

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 1128580042 is about 33594.3453872821. The cubic root of 1128580042 is about 1041.1439711085.

The spelling of 1128580042 in words is "one billion, one hundred twenty-eight million, five hundred eighty thousand, forty-two".