1118738399 has 8 divisors (see below), whose sum is σ = 1126490400. Its totient is φ = 1111008096.

The previous prime is 1118738389. The next prime is 1118738419. The reversal of 1118738399 is 9938378111.

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 1118738399 - 2⁸ = 1118738143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118738389) 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, 105797 + ... + 115889.

It is an arithmetic number, because the mean of its divisors is an integer number (140811300).

Almost surely, 2^1118738399 is an apocalyptic number.

1118738399 is a deficient number, since it is larger than the sum of its proper divisors (7752001).

1118738399 is a wasteful number, since it uses less digits than its factorization.

1118738399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10849.

The product of its digits is 326592, while the sum is 50.

The square root of 1118738399 is about 33447.5469803093. The cubic root of 1118738399 is about 1038.1087419783.

The spelling of 1118738399 in words is "one billion, one hundred eighteen million, seven hundred thirty-eight thousand, three hundred ninety-nine".