1163998418 has 16 divisors (see below), whose sum is σ = 1905327360. Its totient is φ = 528922800.

The previous prime is 1163998399. The next prime is 1163998441. The reversal of 1163998418 is 8148993611.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86783 + ... + 99293.

It is an arithmetic number, because the mean of its divisors is an integer number (119082960).

Almost surely, 2^1163998418 is an apocalyptic number.

1163998418 is a deficient number, since it is larger than the sum of its proper divisors (741328942).

1163998418 is a wasteful number, since it uses less digits than its factorization.

1163998418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16753.

The product of its digits is 373248, while the sum is 50.

The square root of 1163998418 is about 34117.4210338355. The cubic root of 1163998418 is about 1051.9234337573.

The spelling of 1163998418 in words is "one billion, one hundred sixty-three million, nine hundred ninety-eight thousand, four hundred eighteen".