108421432 has 16 divisors (see below), whose sum is σ = 232331760. Its totient is φ = 46466304.

The previous prime is 108421421. The next prime is 108421441. The reversal of 108421432 is 234124801.

It is a junction number, because it is equal to n+sod(n) for n = 108421397 and 108421406.

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 3 ways as a sum of consecutive naturals, for example, 967993 + ... + 968104.

It is an arithmetic number, because the mean of its divisors is an integer number (14520735).

Almost surely, 2^108421432 is an apocalyptic number.

It is an amenable number.

108421432 is an abundant number, since it is smaller than the sum of its proper divisors (123910328).

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

108421432 is a wasteful number, since it uses less digits than its factorization.

108421432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936110 (or 1936106 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 108421432 is about 10412.5612603240. The cubic root of 108421432 is about 476.8389390409.

The spelling of 108421432 in words is "one hundred eight million, four hundred twenty-one thousand, four hundred thirty-two".