1128844892 has 12 divisors (see below), whose sum is σ = 2257689840. Its totient is φ = 483790656.

The previous prime is 1128844883. The next prime is 1128844907. The reversal of 1128844892 is 2984488211.

1128844892 is an admirable number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20157917 + ... + 20157972.

It is an arithmetic number, because the mean of its divisors is an integer number (188140820).

Almost surely, 2^1128844892 is an apocalyptic number.

It is an amenable number.

1128844892 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1128844892 is a wasteful number, since it uses less digits than its factorization.

1128844892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40315900 (or 40315898 counting only the distinct ones).

The product of its digits is 294912, while the sum is 47.

The square root of 1128844892 is about 33598.2870396692. The cubic root of 1128844892 is about 1041.2254083727.

The spelling of 1128844892 in words is "one billion, one hundred twenty-eight million, eight hundred forty-four thousand, eight hundred ninety-two".