422744 has 16 divisors (see below), whose sum is σ = 906000. Its totient is φ = 181152.

The previous prime is 422711. The next prime is 422749. The reversal of 422744 is 447224.

422744 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422749) by changing a digit.

422744 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3719 + ... + 3830.

It is an arithmetic number, because the mean of its divisors is an integer number (56625).

2⁴²²⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

422744 is an abundant number, since it is smaller than the sum of its proper divisors (483256).

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

422744 is a wasteful number, since it uses less digits than its factorization.

422744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7562 (or 7558 counting only the distinct ones).

The product of its digits is 1792, while the sum is 23.

The square root of 422744 is about 650.1876652167. The cubic root of 422744 is about 75.0514609785.

Adding to 422744 its reverse (447224), we get a palindrome (869968).

The spelling of 422744 in words is "four hundred twenty-two thousand, seven hundred forty-four", and thus it is an iban number.