118905408 has 70 divisors (see below), whose sum is σ = 352488246. Its totient is φ = 39633408.

The previous prime is 118905407. The next prime is 118905421. The reversal of 118905408 is 804509811.

It can be written as a sum of positive squares in only one way, i.e., 88962624 + 29942784 = 9432^2 + 5472^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (118905407) 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 9 ways as a sum of consecutive naturals, for example, 6285 + ... + 16652.

Almost surely, 2^118905408 is an apocalyptic number.

118905408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

118905408 is an abundant number, since it is smaller than the sum of its proper divisors (233582838).

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

118905408 is an equidigital number, since it uses as much as digits as its factorization.

118905408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22961 (or 22942 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 118905408 is about 10904.3756354961. The cubic root of 118905408 is about 491.7381116644.

The spelling of 118905408 in words is "one hundred eighteen million, nine hundred five thousand, four hundred eight".