108387438 has 32 divisors (see below), whose sum is σ = 232502400. Its totient is φ = 33579936.

The previous prime is 108387421. The next prime is 108387451. The reversal of 108387438 is 834783801.

It is a self number, because there is not a number n which added to its sum of digits gives 108387438.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2928 + ... + 15011.

It is an arithmetic number, because the mean of its divisors is an integer number (7265700).

Almost surely, 2^108387438 is an apocalyptic number.

108387438 is an abundant number, since it is smaller than the sum of its proper divisors (124114962).

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

108387438 is a wasteful number, since it uses less digits than its factorization.

108387438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18016.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 108387438 is about 10410.9287770112. The cubic root of 108387438 is about 476.7890984728.

The spelling of 108387438 in words is "one hundred eight million, three hundred eighty-seven thousand, four hundred thirty-eight".