42428106 has 48 divisors (see below), whose sum is σ = 106352064. Its totient is φ = 11973312.

The previous prime is 42428093. The next prime is 42428147. The reversal of 42428106 is 60182424.

42428106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42428106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8430 + ... + 12486.

It is an arithmetic number, because the mean of its divisors is an integer number (2215668).

Almost surely, 2^42428106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42428106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53176032).

42428106 is an abundant number, since it is smaller than the sum of its proper divisors (63923958).

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

42428106 is a wasteful number, since it uses less digits than its factorization.

42428106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155 (or 4152 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 42428106 is about 6513.6860532267. The cubic root of 42428106 is about 348.7797122718.

The spelling of 42428106 in words is "forty-two million, four hundred twenty-eight thousand, one hundred six".