108640044 has 36 divisors (see below), whose sum is σ = 277346160. Its totient is φ = 35853600.

The previous prime is 108640033. The next prime is 108640067. The reversal of 108640044 is 440046801.

108640044 is a `hidden beast` number, since 10 + 8 + 640 + 0 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11304 + ... + 18575.

It is an arithmetic number, because the mean of its divisors is an integer number (7704060).

Almost surely, 2^108640044 is an apocalyptic number.

It is an amenable number.

108640044 is an abundant number, since it is smaller than the sum of its proper divisors (168706116).

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

108640044 is a wasteful number, since it uses less digits than its factorization.

108640044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29990 (or 29985 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 108640044 is about 10423.0534873424. The cubic root of 108640044 is about 477.1592100687.

Adding to 108640044 its reverse (440046801), we get a palindrome (548686845).

The spelling of 108640044 in words is "one hundred eight million, six hundred forty thousand, forty-four".