108438778 has 16 divisors (see below), whose sum is σ = 187012224. Its totient is φ = 46194480.

The previous prime is 108438769. The next prime is 108438779. The reversal of 108438778 is 877834801.

It is not an unprimeable number, because it can be changed into a prime (108438779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20853 + ... + 25528.

It is an arithmetic number, because the mean of its divisors is an integer number (11688264).

Almost surely, 2^108438778 is an apocalyptic number.

108438778 is a deficient number, since it is larger than the sum of its proper divisors (78573446).

108438778 is a wasteful number, since it uses less digits than its factorization.

108438778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46557.

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 108438778 is about 10413.3941632880. The cubic root of 108438778 is about 476.8643669999.

The spelling of 108438778 in words is "one hundred eight million, four hundred thirty-eight thousand, seven hundred seventy-eight".