109328720 has 20 divisors (see below), whose sum is σ = 254189460. Its totient is φ = 43731456.

The previous prime is 109328719. The next prime is 109328731. The reversal of 109328720 is 27823901.

It can be written as a sum of positive squares in 2 ways, for example, as 39639616 + 69689104 = 6296^2 + 8348^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683225 + ... + 683384.

It is an arithmetic number, because the mean of its divisors is an integer number (12709473).

Almost surely, 2^109328720 is an apocalyptic number.

109328720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109328720 is an abundant number, since it is smaller than the sum of its proper divisors (144860740).

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

109328720 is a wasteful number, since it uses less digits than its factorization.

109328720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366622 (or 1366616 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 109328720 is about 10456.0374903689. The cubic root of 109328720 is about 478.1653344019.

The spelling of 109328720 in words is "one hundred nine million, three hundred twenty-eight thousand, seven hundred twenty".