542738 has 8 divisors (see below), whose sum is σ = 930432. Its totient is φ = 232596.

The previous prime is 542723. The next prime is 542747. The reversal of 542738 is 837245.

It is a happy number.

542738 is nontrivially palindromic in base 13.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 542738.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542738.

It is an unprimeable number.

542738 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, 19370 + ... + 19397.

It is an arithmetic number, because the mean of its divisors is an integer number (116304).

2⁵⁴²⁷³⁸ is an apocalyptic number.

542738 is a deficient number, since it is larger than the sum of its proper divisors (387694).

542738 is a wasteful number, since it uses less digits than its factorization.

542738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38776.

The product of its digits is 6720, while the sum is 29.

The square root of 542738 is about 736.7075403442. The cubic root of 542738 is about 81.5699275640.

The spelling of 542738 in words is "five hundred forty-two thousand, seven hundred thirty-eight".