42108836 has 36 divisors (see below), whose sum is σ = 93519216. Its totient is φ = 16405200.

The previous prime is 42108821. The next prime is 42108839. The reversal of 42108836 is 63880124.

It is not an unprimeable number, because it can be changed into a prime (42108839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7610 + ... + 11921.

It is an arithmetic number, because the mean of its divisors is an integer number (2597756).

Almost surely, 2^42108836 is an apocalyptic number.

It is an amenable number.

42108836 is an abundant number, since it is smaller than the sum of its proper divisors (51410380).

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

42108836 is a wasteful number, since it uses less digits than its factorization.

42108836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19560 (or 19551 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 42108836 is about 6489.1321453643. The cubic root of 42108836 is about 347.9026569679.

It can be divided in two parts, 421088 and 36, that added together give a palindrome (421124).

The spelling of 42108836 in words is "forty-two million, one hundred eight thousand, eight hundred thirty-six".