108439618 has 16 divisors (see below), whose sum is σ = 193979520. Its totient is φ = 44453376.

The previous prime is 108439607. The next prime is 108439633. The reversal of 108439618 is 816934801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168063 + ... + 168706.

It is an arithmetic number, because the mean of its divisors is an integer number (12123720).

Almost surely, 2^108439618 is an apocalyptic number.

108439618 is a deficient number, since it is larger than the sum of its proper divisors (85539902).

108439618 is a wasteful number, since it uses less digits than its factorization.

108439618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336801.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 108439618 is about 10413.4344958808. The cubic root of 108439618 is about 476.8655983092.

The spelling of 108439618 in words is "one hundred eight million, four hundred thirty-nine thousand, six hundred eighteen".