422742 has 8 divisors (see below), whose sum is σ = 845496. Its totient is φ = 140912.

The previous prime is 422711. The next prime is 422749. The reversal of 422742 is 247224.

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

422742 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422742.

It is not an unprimeable number, because it can be changed into a prime (422749) 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 3 ways as a sum of consecutive naturals, for example, 35223 + ... + 35234.

It is an arithmetic number, because the mean of its divisors is an integer number (105687).

2⁴²²⁷⁴² is an apocalyptic number.

422742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422742 is a wasteful number, since it uses less digits than its factorization.

422742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70462.

The product of its digits is 896, while the sum is 21.

The square root of 422742 is about 650.1861271974. The cubic root of 422742 is about 75.0513426222.

Adding to 422742 its reverse (247224), we get a palindrome (669966).

It can be divided in two parts, 42274 and 2, that multiplied together give a palindrome (84548).

The spelling of 422742 in words is "four hundred twenty-two thousand, seven hundred forty-two", and thus it is an iban number.