1138790168 has 16 divisors (see below), whose sum is σ = 2228068080. Its totient is φ = 544638688.

The previous prime is 1138790143. The next prime is 1138790179. The reversal of 1138790168 is 8610978311.

It is a super-3 number, since 3×1138790168³ (a number of 28 digits) contains 333 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3094355 + ... + 3094722.

It is an arithmetic number, because the mean of its divisors is an integer number (139254255).

Almost surely, 2^1138790168 is an apocalyptic number.

It is an amenable number.

1138790168 is a deficient number, since it is larger than the sum of its proper divisors (1089277912).

1138790168 is a wasteful number, since it uses less digits than its factorization.

1138790168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6189106 (or 6189102 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 1138790168 is about 33745.9652106737. The cubic root of 1138790168 is about 1044.2742510906.

The spelling of 1138790168 in words is "one billion, one hundred thirty-eight million, seven hundred ninety thousand, one hundred sixty-eight".