1128026993 has 8 divisors (see below), whose sum is σ = 1201711968. Its totient is φ = 1055156544.

The previous prime is 1128026971. The next prime is 1128027023. The reversal of 1128026993 is 3996208211.

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

It is not a de Polignac number, because 1128026993 - 2⁶ = 1128026929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1128026993.

It is not an unprimeable number, because it can be changed into a prime (1128026953) 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, 200771 + ... + 206312.

It is an arithmetic number, because the mean of its divisors is an integer number (150213996).

Almost surely, 2^1128026993 is an apocalyptic number.

It is an amenable number.

1128026993 is a deficient number, since it is larger than the sum of its proper divisors (73684975).

1128026993 is a wasteful number, since it uses less digits than its factorization.

1128026993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407263.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 1128026993 is about 33586.1130975289. The cubic root of 1128026993 is about 1040.9738760357.

The spelling of 1128026993 in words is "one billion, one hundred twenty-eight million, twenty-six thousand, nine hundred ninety-three".