1118128408 has 16 divisors (see below), whose sum is σ = 2168784000. Its totient is φ = 539786016.

The previous prime is 1118128399. The next prime is 1118128477. The reversal of 1118128408 is 8048218111.

It is a super-2 number, since 2×1118128408² = 2500422273553228928, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2409528 + ... + 2409991.

It is an arithmetic number, because the mean of its divisors is an integer number (135549000).

Almost surely, 2^1118128408 is an apocalyptic number.

It is an amenable number.

1118128408 is a deficient number, since it is larger than the sum of its proper divisors (1050655592).

1118128408 is a wasteful number, since it uses less digits than its factorization.

1118128408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819554 (or 4819550 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 34.

The square root of 1118128408 is about 33438.4271161190. The cubic root of 1118128408 is about 1037.9200317562.

The spelling of 1118128408 in words is "one billion, one hundred eighteen million, one hundred twenty-eight thousand, four hundred eight".