118638372 has 48 divisors (see below), whose sum is σ = 281534400. Its totient is φ = 38879232.

The previous prime is 118638367. The next prime is 118638389. The reversal of 118638372 is 273836811.

It is a self number, because there is not a number n which added to its sum of digits gives 118638372.

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 15 ways as a sum of consecutive naturals, for example, 264004 + ... + 264452.

It is an arithmetic number, because the mean of its divisors is an integer number (5865300).

Almost surely, 2^118638372 is an apocalyptic number.

118638372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

118638372 is an abundant number, since it is smaller than the sum of its proper divisors (162896028).

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

118638372 is a wasteful number, since it uses less digits than its factorization.

118638372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780 (or 778 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 118638372 is about 10892.1243107118. The cubic root of 118638372 is about 491.3697230357.

The spelling of 118638372 in words is "one hundred eighteen million, six hundred thirty-eight thousand, three hundred seventy-two".