422047 has 8 divisors (see below), whose sum is σ = 450800. Its totient is φ = 393984.

The previous prime is 422041. The next prime is 422057. The reversal of 422047 is 740224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422047 - 2¹¹ = 419999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729 + ... + 1957.

It is an arithmetic number, because the mean of its divisors is an integer number (56350).

2⁴²²⁰⁴⁷ is an apocalyptic number.

422047 is a deficient number, since it is larger than the sum of its proper divisors (28753).

422047 is a wasteful number, since it uses less digits than its factorization.

422047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 422047 is about 649.6514450072. The cubic root of 422047 is about 75.0101912077.

It can be divided in two parts, 4 and 22047, that multiplied together give a palindrome (88188).

The spelling of 422047 in words is "four hundred twenty-two thousand, forty-seven", and thus it is an iban number.