1140389999 has 8 divisors (see below), whose sum is σ = 1331033088. Its totient is φ = 956679480.

The previous prime is 1140389989. The next prime is 1140390077. The reversal of 1140389999 is 9999830411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140389999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1140389999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140389959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1732787 + ... + 1733444.

It is an arithmetic number, because the mean of its divisors is an integer number (166379136).

Almost surely, 2^1140389999 is an apocalyptic number.

1140389999 is a deficient number, since it is larger than the sum of its proper divisors (190643089).

1140389999 is an equidigital number, since it uses as much as digits as its factorization.

1140389999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466285.

The product of its (nonzero) digits is 629856, while the sum is 53.

The square root of 1140389999 is about 33769.6609251559. The cubic root of 1140389999 is about 1044.7630389968.

The spelling of 1140389999 in words is "one billion, one hundred forty million, three hundred eighty-nine thousand, nine hundred ninety-nine".