427224 has 32 divisors (see below), whose sum is σ = 1221120. Its totient is φ = 122016.

The previous prime is 427213. The next prime is 427237. The reversal of 427224 is 422724.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is a self number, because there is not a number n which added to its sum of digits gives 427224.

It is a congruent number.

It is an unprimeable number.

427224 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 7 ways as a sum of consecutive naturals, for example, 1104 + ... + 1439.

It is an arithmetic number, because the mean of its divisors is an integer number (38160).

2⁴²⁷²²⁴ is an apocalyptic number.

It is an amenable number.

427224 is an abundant number, since it is smaller than the sum of its proper divisors (793896).

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

427224 is a wasteful number, since it uses less digits than its factorization.

427224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559 (or 2555 counting only the distinct ones).

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

The square root of 427224 is about 653.6237449787. The cubic root of 427224 is about 75.3156474698.

Adding to 427224 its reverse (422724), we get a palindrome (849948).

The spelling of 427224 in words is "four hundred twenty-seven thousand, two hundred twenty-four", and thus it is an iban number.