42638675 has 12 divisors (see below), whose sum is σ = 52957176. Its totient is φ = 34056000.

The previous prime is 42638663. The next prime is 42638693. The reversal of 42638675 is 57683624.

It is a happy number.

42638675 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42638675 - 2⁶ = 42638611 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 22775 + ... + 24575.

It is an arithmetic number, because the mean of its divisors is an integer number (4413098).

Almost surely, 2^42638675 is an apocalyptic number.

42638675 is a deficient number, since it is larger than the sum of its proper divisors (10318501).

42638675 is a wasteful number, since it uses less digits than its factorization.

42638675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758 (or 2753 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 42638675 is about 6529.8296302430. The cubic root of 42638675 is about 349.3557536363.

The spelling of 42638675 in words is "forty-two million, six hundred thirty-eight thousand, six hundred seventy-five".