1140789 has 8 divisors (see below), whose sum is σ = 1638112. Its totient is φ = 702000.

The previous prime is 1140787. The next prime is 1140803. The reversal of 1140789 is 9870411.

1140789 = T₇₇ + T₇₈ + ... + T₁₉₃.

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

It is not a de Polignac number, because 1140789 - 2¹ = 1140787 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140787) 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, 14587 + ... + 14664.

It is an arithmetic number, because the mean of its divisors is an integer number (204764).

2^1140789 is an apocalyptic number.

It is an amenable number.

1140789 is a deficient number, since it is larger than the sum of its proper divisors (497323).

1140789 is a wasteful number, since it uses less digits than its factorization.

1140789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29267.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 1140789 is about 1068.0772443976. The cubic root of 1140789 is about 104.4884872431.

The spelling of 1140789 in words is "one million, one hundred forty thousand, seven hundred eighty-nine".