109906728 has 16 divisors (see below), whose sum is σ = 274766880. Its totient is φ = 36635568.

The previous prime is 109906711. The next prime is 109906757. The reversal of 109906728 is 827609901.

It is a self number, because there is not a number n which added to its sum of digits gives 109906728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2289700 + ... + 2289747.

It is an arithmetic number, because the mean of its divisors is an integer number (17172930).

Almost surely, 2^109906728 is an apocalyptic number.

It is an amenable number.

109906728 is an abundant number, since it is smaller than the sum of its proper divisors (164860152).

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

109906728 is a wasteful number, since it uses less digits than its factorization.

109906728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4579456 (or 4579452 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 109906728 is about 10483.6409705789. The cubic root of 109906728 is about 479.0065215587.

The spelling of 109906728 in words is "one hundred nine million, nine hundred six thousand, seven hundred twenty-eight".