1118869028 has 24 divisors (see below), whose sum is σ = 2007151104. Its totient is φ = 545486400.

The previous prime is 1118869027. The next prime is 1118869043. The reversal of 1118869028 is 8209688111.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1118869028.

It is not an unprimeable number, because it can be changed into a prime (1118869027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39968 + ... + 61928.

It is an arithmetic number, because the mean of its divisors is an integer number (83631296).

Almost surely, 2^1118869028 is an apocalyptic number.

It is an amenable number.

1118869028 is a deficient number, since it is larger than the sum of its proper divisors (888282076).

1118869028 is a wasteful number, since it uses less digits than its factorization.

1118869028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22283 (or 22281 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 44.

The square root of 1118869028 is about 33449.4996674091. The cubic root of 1118869028 is about 1038.1491451769.

The spelling of 1118869028 in words is "one billion, one hundred eighteen million, eight hundred sixty-nine thousand, twenty-eight".