108640218 has 16 divisors (see below), whose sum is σ = 221904000. Its totient is φ = 35442816.

The previous prime is 108640193. The next prime is 108640219. The reversal of 108640218 is 812046801.

It is not an unprimeable number, because it can be changed into a prime (108640219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192343 + ... + 192906.

It is an arithmetic number, because the mean of its divisors is an integer number (13869000).

Almost surely, 2^108640218 is an apocalyptic number.

108640218 is an abundant number, since it is smaller than the sum of its proper divisors (113263782).

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

108640218 is a wasteful number, since it uses less digits than its factorization.

108640218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385301.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 108640218 is about 10423.0618342213. The cubic root of 108640218 is about 477.1594648111.

The spelling of 108640218 in words is "one hundred eight million, six hundred forty thousand, two hundred eighteen".