118638772 has 24 divisors (see below), whose sum is σ = 237734784. Its totient is φ = 50747232.

The previous prime is 118638769. The next prime is 118638781. The reversal of 118638772 is 277836811.

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, 11793 + ... + 19399.

It is an arithmetic number, because the mean of its divisors is an integer number (9905616).

Almost surely, 2^118638772 is an apocalyptic number.

It is an amenable number.

118638772 is an abundant number, since it is smaller than the sum of its proper divisors (119096012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118638772 is a wasteful number, since it uses less digits than its factorization.

118638772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8175 (or 8173 counting only the distinct ones).

The product of its digits is 112896, while the sum is 43.

The square root of 118638772 is about 10892.1426725874. The cubic root of 118638772 is about 491.3702752676.

The spelling of 118638772 in words is "one hundred eighteen million, six hundred thirty-eight thousand, seven hundred seventy-two".