1140789385 has 8 divisors (see below), whose sum is σ = 1416152520. Its totient is φ = 881161344.

The previous prime is 1140789361. The next prime is 1140789401. The reversal of 1140789385 is 5839870411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19678096 + 1121111289 = 4436^2 + 33483^2 .

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 1140789385 - 2⁷ = 1140789257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3933612 + ... + 3933901.

It is an arithmetic number, because the mean of its divisors is an integer number (177019065).

Almost surely, 2^1140789385 is an apocalyptic number.

It is an amenable number.

1140789385 is a deficient number, since it is larger than the sum of its proper divisors (275363135).

1140789385 is an equidigital number, since it uses as much as digits as its factorization.

1140789385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7867547.

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 1140789385 is about 33775.5737923133. The cubic root of 1140789385 is about 1044.8849899755.

The spelling of 1140789385 in words is "one billion, one hundred forty million, seven hundred eighty-nine thousand, three hundred eighty-five".