42109108 has 12 divisors (see below), whose sum is σ = 75682852. Its totient is φ = 20485440.

The previous prime is 42109099. The next prime is 42109117. The reversal of 42109108 is 80190124.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42109099) and next prime (42109117).

It can be written as a sum of positive squares in 2 ways, for example, as 18079504 + 24029604 = 4252^2 + 4902^2 .

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, 142113 + ... + 142408.

Almost surely, 2^42109108 is an apocalyptic number.

It is an amenable number.

42109108 is a deficient number, since it is larger than the sum of its proper divisors (33573744).

42109108 is a wasteful number, since it uses less digits than its factorization.

42109108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284562 (or 284560 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 42109108 is about 6489.1531034489. The cubic root of 42109108 is about 347.9034060531.

The spelling of 42109108 in words is "forty-two million, one hundred nine thousand, one hundred eight".