634224 has 40 divisors (see below), whose sum is σ = 1670032. Its totient is φ = 207360.

The previous prime is 634223. The next prime is 634237. The reversal of 634224 is 422436.

634224 is digitally balanced in base 2, 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 a self number, because there is not a number n which added to its sum of digits gives 634224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3414 + ... + 3594.

2⁶³⁴²²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (835016).

634224 is an abundant number, since it is smaller than the sum of its proper divisors (1035808).

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

634224 is a wasteful number, since it uses less digits than its factorization.

634224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 259 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 634224 is about 796.3818179743. The cubic root of 634224 is about 85.9173534482.

It can be divided in two parts, 634 and 224, that added together give a palindrome (858).

The spelling of 634224 in words is "six hundred thirty-four thousand, two hundred twenty-four".