542433 has 4 divisors (see below), whose sum is σ = 723248. Its totient is φ = 361620.

The previous prime is 542401. The next prime is 542441. The reversal of 542433 is 334245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 542433 - 2⁵ = 542401 is a prime.

It is a d-powerful number, because it can be written as 5 + 4⁵ + 4⁷ + 2¹⁹ + 3 + 3⁶ .

It is a D-number.

It is the 737-th Hogben number.

It is a Duffinian number.

542433 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542433.

It is not an unprimeable number, because it can be changed into a prime (542483) by changing a digit.

It is a nontrivial repunit in base 736.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90403 + ... + 90408.

It is an arithmetic number, because the mean of its divisors is an integer number (180812).

2⁵⁴²⁴³³ is an apocalyptic number.

It is an amenable number.

542433 is a deficient number, since it is larger than the sum of its proper divisors (180815).

542433 is a wasteful number, since it uses less digits than its factorization.

542433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180814.

The product of its digits is 1440, while the sum is 21.

The square root of 542433 is about 736.5005091648. The cubic root of 542433 is about 81.5546448741.

Adding to 542433 its reverse (334245), we get a palindrome (876678).

The spelling of 542433 in words is "five hundred forty-two thousand, four hundred thirty-three".