504426 has 32 divisors (see below), whose sum is σ = 1128960. Its totient is φ = 149184.

The previous prime is 504403. The next prime is 504457. The reversal of 504426 is 624405.

504426 = T₂₈ + T₂₉ + ... + T₁₄₄.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

504426 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2151 + ... + 2373.

It is an arithmetic number, because the mean of its divisors is an integer number (35280).

2⁵⁰⁴⁴²⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 504426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564480).

504426 is an abundant number, since it is smaller than the sum of its proper divisors (624534).

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

504426 is a wasteful number, since it uses less digits than its factorization.

504426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 504426 is about 710.2295403600. The cubic root of 504426 is about 79.6035595152.

Subtracting from 504426 its sum of digits (21), we obtain a palindrome (504405).

The spelling of 504426 in words is "five hundred four thousand, four hundred twenty-six".