505434434 has 8 divisors (see below), whose sum is σ = 758512188. Its totient is φ = 252597040.

The previous prime is 505434431. The next prime is 505434469. The reversal of 505434434 is 434434505.

It can be written as a sum of positive squares in 2 ways, for example, as 477291409 + 28143025 = 21847^2 + 5305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 505434434.

It is not an unprimeable number, because it can be changed into a prime (505434431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54737 + ... + 63300.

Almost surely, 2^505434434 is an apocalyptic number.

505434434 is a deficient number, since it is larger than the sum of its proper divisors (253077754).

505434434 is a wasteful number, since it uses less digits than its factorization.

505434434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120180.

The product of its (nonzero) digits is 57600, while the sum is 32.

The square root of 505434434 is about 22481.8690059345. The cubic root of 505434434 is about 796.5657125586.

Adding to 505434434 its reverse (434434505), we get a palindrome (939868939).

The spelling of 505434434 in words is "five hundred five million, four hundred thirty-four thousand, four hundred thirty-four".