542732 has 12 divisors (see below), whose sum is σ = 955416. Its totient is φ = 269760.

The previous prime is 542723. The next prime is 542747. The reversal of 542732 is 237245.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 542698 and 542707.

It is an unprimeable number.

542732 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683 + ... + 1245.

It is an arithmetic number, because the mean of its divisors is an integer number (79618).

2⁵⁴²⁷³² is an apocalyptic number.

It is an amenable number.

542732 is a deficient number, since it is larger than the sum of its proper divisors (412684).

542732 is a wasteful number, since it uses less digits than its factorization.

542732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 806 counting only the distinct ones).

The product of its digits is 1680, while the sum is 23.

The square root of 542732 is about 736.7034681607. The cubic root of 542732 is about 81.5696269762.

Adding to 542732 its reverse (237245), we get a palindrome (779977).

The spelling of 542732 in words is "five hundred forty-two thousand, seven hundred thirty-two".