108640266 has 16 divisors (see below), whose sum is σ = 248320704. Its totient is φ = 31040064.

The previous prime is 108640261. The next prime is 108640297. The reversal of 108640266 is 662046801.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (108640261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1293295 + ... + 1293378.

It is an arithmetic number, because the mean of its divisors is an integer number (15520044).

Almost surely, 2^108640266 is an apocalyptic number.

108640266 is an abundant number, since it is smaller than the sum of its proper divisors (139680438).

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

108640266 is a wasteful number, since it uses less digits than its factorization.

108640266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586685.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 108640266 is about 10423.0641368074. The cubic root of 108640266 is about 477.1595350848.

The spelling of 108640266 in words is "one hundred eight million, six hundred forty thousand, two hundred sixty-six".