505444432 has 10 divisors (see below), whose sum is σ = 979298618. Its totient is φ = 252722208.

The previous prime is 505444421. The next prime is 505444447. The reversal of 505444432 is 234444505.

It can be written as a sum of positive squares in only one way, i.e., 380094016 + 125350416 = 19496^2 + 11196^2 .

It is a junction number, because it is equal to n+sod(n) for n = 505444394 and 505444403.

It is a congruent number.

It is an unprimeable 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 as a sum of consecutive naturals, namely, 15795123 + ... + 15795154.

Almost surely, 2^505444432 is an apocalyptic number.

It is an amenable number.

505444432 is a deficient number, since it is larger than the sum of its proper divisors (473854186).

505444432 is a wasteful number, since it uses less digits than its factorization.

505444432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31590285 (or 31590279 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 505444432 is about 22482.0913617928. The cubic root of 505444432 is about 796.5709648136.

Adding to 505444432 its reverse (234444505), we get a palindrome (739888937).

The spelling of 505444432 in words is "five hundred five million, four hundred forty-four thousand, four hundred thirty-two".