108163440 has 240 divisors, whose sum is σ = 453113856. Its totient is φ = 22464000.

The previous prime is 108163397. The next prime is 108163463. The reversal of 108163440 is 44361801.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 54465 + ... + 56415.

Almost surely, 2^108163440 is an apocalyptic number.

108163440 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 108163440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226556928).

108163440 is an abundant number, since it is smaller than the sum of its proper divisors (344950416).

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

108163440 is a wasteful number, since it uses less digits than its factorization.

108163440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 108163440 is about 10400.1653833004. The cubic root of 108163440 is about 476.4604212037.

The spelling of 108163440 in words is "one hundred eight million, one hundred sixty-three thousand, four hundred forty".