118266890 has 24 divisors (see below), whose sum is σ = 247637412. Its totient is φ = 40548480.

The previous prime is 118266881. The next prime is 118266893. The reversal of 118266890 is 98662811.

It can be written as a sum of positive squares in 2 ways, for example, as 116661601 + 1605289 = 10801^2 + 1267^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118266893) 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 11 ways as a sum of consecutive naturals, for example, 120191 + ... + 121170.

Almost surely, 2^118266890 is an apocalyptic number.

118266890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118266890 is an abundant number, since it is smaller than the sum of its proper divisors (129370522).

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

118266890 is a wasteful number, since it uses less digits than its factorization.

118266890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241382 (or 241375 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 118266890 is about 10875.0581607640. The cubic root of 118266890 is about 490.8563257396.

The spelling of 118266890 in words is "one hundred eighteen million, two hundred sixty-six thousand, eight hundred ninety".