108990732 has 12 divisors (see below), whose sum is σ = 254311736. Its totient is φ = 36330240.

The previous prime is 108990727. The next prime is 108990733. The reversal of 108990732 is 237099801.

108990732 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

108990732 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (108990733) by changing a digit.

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, 4541269 + ... + 4541292.

Almost surely, 2^108990732 is an apocalyptic number.

108990732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

108990732 is an abundant number, since it is smaller than the sum of its proper divisors (145321004).

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

108990732 is a wasteful number, since it uses less digits than its factorization.

108990732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9082568 (or 9082566 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 108990732 is about 10439.8626427746. The cubic root of 108990732 is about 477.6720789115.

The spelling of 108990732 in words is "one hundred eight million, nine hundred ninety thousand, seven hundred thirty-two".