550434 has 16 divisors (see below), whose sum is σ = 1108800. Its totient is φ = 182160.

The previous prime is 550427. The next prime is 550439. The reversal of 550434 is 434055.

It is a happy number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 550434.

It is not an unprimeable number, because it can be changed into a prime (550439) by changing a digit.

550434 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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964 + ... + 1424.

It is an arithmetic number, because the mean of its divisors is an integer number (69300).

2⁵⁵⁰⁴³⁴ is an apocalyptic number.

550434 is an abundant number, since it is smaller than the sum of its proper divisors (558366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550434 is a wasteful number, since it uses less digits than its factorization.

550434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 550434 is about 741.9123937501. The cubic root of 550434 is about 81.9536720263.

Adding to 550434 its reverse (434055), we get a palindrome (984489).

The spelling of 550434 in words is "five hundred fifty thousand, four hundred thirty-four".