118261938 has 8 divisors (see below), whose sum is σ = 236523888. Its totient is φ = 39420644.

The previous prime is 118261937. The next prime is 118261943. The reversal of 118261938 is 839162811.

It is a sphenic number, since it is the product of 3 distinct primes.

118261938 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 118261896 and 118261905.

It is not an unprimeable number, because it can be changed into a prime (118261937) by changing a digit.

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, 9855156 + ... + 9855167.

It is an arithmetic number, because the mean of its divisors is an integer number (29565486).

Almost surely, 2^118261938 is an apocalyptic number.

118261938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

118261938 is a wasteful number, since it uses less digits than its factorization.

118261938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19710328.

The product of its digits is 20736, while the sum is 39.

The square root of 118261938 is about 10874.8304814374. The cubic root of 118261938 is about 490.8494746971.

The spelling of 118261938 in words is "one hundred eighteen million, two hundred sixty-one thousand, nine hundred thirty-eight".