522732 has 48 divisors (see below), whose sum is σ = 1433600. Its totient is φ = 148176.

The previous prime is 522719. The next prime is 522737. The reversal of 522732 is 237225.

522732 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 522699 and 522708.

It is not an unprimeable number, because it can be changed into a prime (522737) by changing a digit.

522732 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 15 ways as a sum of consecutive naturals, for example, 4053 + ... + 4179.

522732 is a Friedman number, since it can be written as 723^2+5-2, using all its digits and the basic arithmetic operations.

2⁵²²⁷³² 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 522732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716800).

522732 is an abundant number, since it is smaller than the sum of its proper divisors (910868).

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

522732 is a wasteful number, since it uses less digits than its factorization.

522732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 139 counting only the distinct ones).

The product of its digits is 840, while the sum is 21.

The square root of 522732 is about 723.0020746858. The cubic root of 522732 is about 80.5550977558. Note that the first 3 decimals are identical.

Adding to 522732 its sum of digits (21), we get a triangular number (522753 = T₁₀₂₂).

Adding to 522732 its reverse (237225), we get a palindrome (759957).

The spelling of 522732 in words is "five hundred twenty-two thousand, seven hundred thirty-two".