422067 has 4 divisors (see below), whose sum is σ = 562760. Its totient is φ = 281376.

The previous prime is 422063. The next prime is 422069. The reversal of 422067 is 760224.

It is a happy number.

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

It is not a de Polignac number, because 422067 - 2² = 422063 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422067.

It is not an unprimeable number, because it can be changed into a prime (422063) 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, 70342 + ... + 70347.

It is an arithmetic number, because the mean of its divisors is an integer number (140690).

2⁴²²⁰⁶⁷ is an apocalyptic number.

422067 is a deficient number, since it is larger than the sum of its proper divisors (140693).

422067 is a wasteful number, since it uses less digits than its factorization.

422067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140692.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 422067 is about 649.6668376945. Note that the first 3 decimals coincide. The cubic root of 422067 is about 75.0113760522.

The spelling of 422067 in words is "four hundred twenty-two thousand, sixty-seven".