505140430 has 16 divisors (see below), whose sum is σ = 909939744. Its totient is φ = 201903520.

The previous prime is 505140347. The next prime is 505140463. The reversal of 505140430 is 34041505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4666 + ... + 32125.

It is an arithmetic number, because the mean of its divisors is an integer number (56871234).

Almost surely, 2^505140430 is an apocalyptic number.

505140430 is a deficient number, since it is larger than the sum of its proper divisors (404799314).

505140430 is a wasteful number, since it uses less digits than its factorization.

505140430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38171.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 505140430 is about 22475.3293635488. The cubic root of 505140430 is about 796.4112322979.

Adding to 505140430 its reverse (34041505), we get a palindrome (539181935).

The spelling of 505140430 in words is "five hundred five million, one hundred forty thousand, four hundred thirty".