633424 has 40 divisors (see below), whose sum is σ = 1383840. Its totient is φ = 278400.

The previous prime is 633407. The next prime is 633427. The reversal of 633424 is 424336.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 633395 and 633404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633427) 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, 10354 + ... + 10414.

It is an arithmetic number, because the mean of its divisors is an integer number (34596).

2⁶³³⁴²⁴ 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 633424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691920).

633424 is an abundant number, since it is smaller than the sum of its proper divisors (750416).

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

633424 is a wasteful number, since it uses less digits than its factorization.

633424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 133 counting only the distinct ones).

The product of its digits is 1728, while the sum is 22.

The square root of 633424 is about 795.8793878472. The cubic root of 633424 is about 85.8812133237.

The spelling of 633424 in words is "six hundred thirty-three thousand, four hundred twenty-four".