1118045398 has 16 divisors (see below), whose sum is σ = 1707168960. Its totient is φ = 549007816.

The previous prime is 1118045371. The next prime is 1118045407. The reversal of 1118045398 is 8935408111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1118045398.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133161 + ... + 141307.

It is an arithmetic number, because the mean of its divisors is an integer number (106698060).

Almost surely, 2^1118045398 is an apocalyptic number.

1118045398 is a deficient number, since it is larger than the sum of its proper divisors (589123562).

1118045398 is a wasteful number, since it uses less digits than its factorization.

1118045398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9371.

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 1118045398 is about 33437.1858564682. The cubic root of 1118045398 is about 1037.8943460141.

The spelling of 1118045398 in words is "one billion, one hundred eighteen million, forty-five thousand, three hundred ninety-eight".