1128844893 has 8 divisors (see below), whose sum is σ = 1641956256. Its totient is φ = 684148400.

The previous prime is 1128844883. The next prime is 1128844907. The reversal of 1128844893 is 3984488211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1128844893 - 2¹⁶ = 1128779357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128844823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17103678 + ... + 17103743.

It is an arithmetic number, because the mean of its divisors is an integer number (205244532).

Almost surely, 2^1128844893 is an apocalyptic number.

It is an amenable number.

1128844893 is a deficient number, since it is larger than the sum of its proper divisors (513111363).

1128844893 is a wasteful number, since it uses less digits than its factorization.

1128844893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34207435.

The product of its digits is 442368, while the sum is 48.

The square root of 1128844893 is about 33598.2870545509. The cubic root of 1128844893 is about 1041.2254086802.

The spelling of 1128844893 in words is "one billion, one hundred twenty-eight million, eight hundred forty-four thousand, eight hundred ninety-three".