108140220 has 72 divisors (see below), whose sum is σ = 329120064. Its totient is φ = 28741248.

The previous prime is 108140161. The next prime is 108140257. The reversal of 108140220 is 22041801.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 108140193 and 108140202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65242 + ... + 66878.

It is an arithmetic number, because the mean of its divisors is an integer number (4571112).

Almost surely, 2^108140220 is an apocalyptic number.

108140220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108140220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164560032).

108140220 is an abundant number, since it is smaller than the sum of its proper divisors (220979844).

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

108140220 is a wasteful number, since it uses less digits than its factorization.

108140220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 108140220 is about 10399.0489949803. The cubic root of 108140220 is about 476.4263240302.

The spelling of 108140220 in words is "one hundred eight million, one hundred forty thousand, two hundred twenty".