108438240 has 192 divisors, whose sum is σ = 368069184. Its totient is φ = 26738688.

The previous prime is 108438179. The next prime is 108438241. The reversal of 108438240 is 42834801.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 108438198 and 108438207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108438241) 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 31 ways as a sum of consecutive naturals, for example, 791452 + ... + 791588.

It is an arithmetic number, because the mean of its divisors is an integer number (1917027).

Almost surely, 2^108438240 is an apocalyptic number.

108438240 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 108438240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184034592).

108438240 is an abundant number, since it is smaller than the sum of its proper divisors (259630944).

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

108438240 is a wasteful number, since it uses less digits than its factorization.

108438240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 108438240 is about 10413.3683311405. The cubic root of 108438240 is about 476.8635783723.

The spelling of 108438240 in words is "one hundred eight million, four hundred thirty-eight thousand, two hundred forty".