42067975 has 12 divisors (see below), whose sum is σ = 53378776. Its totient is φ = 32870880.

The previous prime is 42067967. The next prime is 42067999. The reversal of 42067975 is 57976024.

It is not a de Polignac number, because 42067975 - 2³ = 42067967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18492 + ... + 20641.

Almost surely, 2^42067975 is an apocalyptic number.

42067975 is a deficient number, since it is larger than the sum of its proper divisors (11310801).

42067975 is a wasteful number, since it uses less digits than its factorization.

42067975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39186 (or 39181 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 42067975 is about 6485.9829632832. The cubic root of 42067975 is about 347.7900895321.

The spelling of 42067975 in words is "forty-two million, sixty-seven thousand, nine hundred seventy-five".