42256867 has 4 divisors (see below), whose sum is σ = 42298200. Its totient is φ = 42215536.

The previous prime is 42256859. The next prime is 42256871. The reversal of 42256867 is 76865224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42256867 - 2³ = 42256859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42256367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19093 + ... + 21190.

It is an arithmetic number, because the mean of its divisors is an integer number (10574550).

Almost surely, 2^42256867 is an apocalyptic number.

42256867 is a deficient number, since it is larger than the sum of its proper divisors (41333).

42256867 is a wasteful number, since it uses less digits than its factorization.

42256867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41332.

The product of its digits is 161280, while the sum is 40.

The square root of 42256867 is about 6500.5282093073. The cubic root of 42256867 is about 348.3098569121.

The spelling of 42256867 in words is "forty-two million, two hundred fifty-six thousand, eight hundred sixty-seven".