543442 has 8 divisors (see below), whose sum is σ = 820656. Its totient is φ = 269892.

The previous prime is 543427. The next prime is 543463. The reversal of 543442 is 244345.

It is a happy number.

543442 is nontrivially palindromic in base 7.

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

It is a d-powerful number, because it can be written as 5⁷ + 4 + 4⁸ + 3⁸ + 4⁹ + 2¹⁷ .

It is a plaindrome in base 12.

It is a zygodrome in base 7.

It is an unprimeable number.

543442 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 3 ways as a sum of consecutive naturals, for example, 508 + ... + 1159.

It is an arithmetic number, because the mean of its divisors is an integer number (102582).

2⁵⁴³⁴⁴² is an apocalyptic number.

543442 is a deficient number, since it is larger than the sum of its proper divisors (277214).

543442 is a wasteful number, since it uses less digits than its factorization.

543442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832.

The product of its digits is 1920, while the sum is 22.

The square root of 543442 is about 737.1851870460. The cubic root of 543442 is about 81.6051811717.

Adding to 543442 its reverse (244345), we get a palindrome (787787).

It can be divided in two parts, 5434 and 42, that added together give a square (5476 = 74²).

The spelling of 543442 in words is "five hundred forty-three thousand, four hundred forty-two".