42638106 has 32 divisors (see below), whose sum is σ = 98058240. Its totient is φ = 12107376.

The previous prime is 42638081. The next prime is 42638143. The reversal of 42638106 is 60183624.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3975 + ... + 10053.

It is an arithmetic number, because the mean of its divisors is an integer number (3064320).

Almost surely, 2^42638106 is an apocalyptic number.

42638106 is an abundant number, since it is smaller than the sum of its proper divisors (55420134).

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

42638106 is a wasteful number, since it uses less digits than its factorization.

42638106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 42638106 is about 6529.7860608139. The cubic root of 42638106 is about 349.3541996144.

The spelling of 42638106 in words is "forty-two million, six hundred thirty-eight thousand, one hundred six".