509365734 has 16 divisors (see below), whose sum is σ = 1018981488. Its totient is φ = 169746912.

The previous prime is 509365723. The next prime is 509365739. The reversal of 509365734 is 437563905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509365739) by changing a digit.

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, 25704 + ... + 40980.

It is an arithmetic number, because the mean of its divisors is an integer number (63686343).

Almost surely, 2^509365734 is an apocalyptic number.

509365734 is an abundant number, since it is smaller than the sum of its proper divisors (509615754).

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

509365734 is a wasteful number, since it uses less digits than its factorization.

509365734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20839.

The product of its (nonzero) digits is 340200, while the sum is 42.

The square root of 509365734 is about 22569.1323271410. The cubic root of 509365734 is about 798.6256266829.

The spelling of 509365734 in words is "five hundred nine million, three hundred sixty-five thousand, seven hundred thirty-four".