505421432430 has 32 divisors (see below), whose sum is σ = 1213059607200. Its totient is φ = 134773696512.

The previous prime is 505421432413. The next prime is 505421432441. The reversal of 505421432430 is 34234124505.

It is a junction number, because it is equal to n+sod(n) for n = 505421432391 and 505421432400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464866 + ... + 1107674.

It is an arithmetic number, because the mean of its divisors is an integer number (37908112725).

Almost surely, 2^505421432430 is an apocalyptic number.

505421432430 is an abundant number, since it is smaller than the sum of its proper divisors (707638174770).

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

505421432430 is a wasteful number, since it uses less digits than its factorization.

505421432430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669028.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 505421432430 its reverse (34234124505), we get a palindrome (539655556935).

The spelling of 505421432430 in words is "five hundred five billion, four hundred twenty-one million, four hundred thirty-two thousand, four hundred thirty".