505709930 has 16 divisors (see below), whose sum is σ = 993030624. Its totient is φ = 183894480.

The previous prime is 505709923. The next prime is 505709977. The reversal of 505709930 is 39907505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2298572 + ... + 2298791.

It is an arithmetic number, because the mean of its divisors is an integer number (62064414).

Almost surely, 2^505709930 is an apocalyptic number.

505709930 is a deficient number, since it is larger than the sum of its proper divisors (487320694).

505709930 is a wasteful number, since it uses less digits than its factorization.

505709930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597381.

The product of its (nonzero) digits is 42525, while the sum is 38.

The square root of 505709930 is about 22487.9952419063. The cubic root of 505709930 is about 796.7104136930.

The spelling of 505709930 in words is "five hundred five million, seven hundred nine thousand, nine hundred thirty".