108720042 has 8 divisors (see below), whose sum is σ = 217440096. Its totient is φ = 36240012.

The previous prime is 108719999. The next prime is 108720047. The reversal of 108720042 is 240027801.

It is a sphenic number, since it is the product of 3 distinct primes.

108720042 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 108719994 and 108720021.

It is not an unprimeable number, because it can be changed into a prime (108720047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9059998 + ... + 9060009.

It is an arithmetic number, because the mean of its divisors is an integer number (27180012).

Almost surely, 2^108720042 is an apocalyptic number.

108720042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

108720042 is a wasteful number, since it uses less digits than its factorization.

108720042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18120012.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 108720042 is about 10426.8903322131. The cubic root of 108720042 is about 477.2763013841.

Adding to 108720042 its reverse (240027801), we get a palindrome (348747843).

The spelling of 108720042 in words is "one hundred eight million, seven hundred twenty thousand, forty-two".