434542 has 4 divisors (see below), whose sum is σ = 651816. Its totient is φ = 217270.

The previous prime is 434521. The next prime is 434561. The reversal of 434542 is 245434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

434542 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 as a sum of consecutive naturals, namely, 108634 + ... + 108637.

It is an arithmetic number, because the mean of its divisors is an integer number (162954).

2⁴³⁴⁵⁴² is an apocalyptic number.

434542 is a deficient number, since it is larger than the sum of its proper divisors (217274).

434542 is a wasteful number, since it uses less digits than its factorization.

434542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217273.

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

The square root of 434542 is about 659.1979975698. The cubic root of 434542 is about 75.7432471551.

Adding to 434542 its reverse (245434), we get a palindrome (679976).

The spelling of 434542 in words is "four hundred thirty-four thousand, five hundred forty-two".