108409920 has 56 divisors (see below), whose sum is σ = 344204544. Its totient is φ = 28909056.

The previous prime is 108409919. The next prime is 108409927. The reversal of 108409920 is 29904801.

It is not an unprimeable number, because it can be changed into a prime (108409927) 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 7 ways as a sum of consecutive naturals, for example, 55504 + ... + 57423.

Almost surely, 2^108409920 is an apocalyptic number.

108409920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108409920 is an abundant number, since it is smaller than the sum of its proper divisors (235794624).

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

108409920 is a wasteful number, since it uses less digits than its factorization.

108409920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112947 (or 112937 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 108409920 is about 10412.0084517830. The cubic root of 108409920 is about 476.8220617992.

The spelling of 108409920 in words is "one hundred eight million, four hundred nine thousand, nine hundred twenty".