108438432 has 96 divisors (see below), whose sum is σ = 295162560. Its totient is φ = 34836480.

The previous prime is 108438397. The next prime is 108438437. The reversal of 108438432 is 234834801.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 108438393 and 108438402.

It is not an unprimeable number, because it can be changed into a prime (108438437) 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 15 ways as a sum of consecutive naturals, for example, 449832 + ... + 450072.

It is an arithmetic number, because the mean of its divisors is an integer number (3074610).

Almost surely, 2^108438432 is an apocalyptic number.

108438432 is a gapful number since it is divisible by the number (12) 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 108438432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147581280).

108438432 is an abundant number, since it is smaller than the sum of its proper divisors (186724128).

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

108438432 is a wasteful number, since it uses less digits than its factorization.

108438432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 108438432 is about 10413.3775500555. The cubic root of 108438432 is about 476.8638598159.

The spelling of 108438432 in words is "one hundred eight million, four hundred thirty-eight thousand, four hundred thirty-two".