42109120 has 28 divisors (see below), whose sum is σ = 100273104. Its totient is φ = 16843520.

The previous prime is 42109117. The next prime is 42109121. The reversal of 42109120 is 2190124.

It is not an unprimeable number, because it can be changed into a prime (42109121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65476 + ... + 66115.

Almost surely, 2^42109120 is an apocalyptic number.

42109120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42109120 is an abundant number, since it is smaller than the sum of its proper divisors (58163984).

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

42109120 is a wasteful number, since it uses less digits than its factorization.

42109120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131608 (or 131598 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 42109120 is about 6489.1540280687. The cubic root of 42109120 is about 347.9034391009.

Adding to 42109120 its reverse (2190124), we get a palindrome (44299244).

The spelling of 42109120 in words is "forty-two million, one hundred nine thousand, one hundred twenty".