509469730 has 64 divisors (see below), whose sum is σ = 1159557120. Its totient is φ = 156542400.

The previous prime is 509469691. The next prime is 509469733. The reversal of 509469730 is 37964905.

It is not an unprimeable number, because it can be changed into a prime (509469733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50011 + ... + 59329.

It is an arithmetic number, because the mean of its divisors is an integer number (18118080).

Almost surely, 2^509469730 is an apocalyptic number.

509469730 is an abundant number, since it is smaller than the sum of its proper divisors (650087390).

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

509469730 is a wasteful number, since it uses less digits than its factorization.

509469730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9415.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 509469730 is about 22571.4361528016. The cubic root of 509469730 is about 798.6799741543.

The spelling of 509469730 in words is "five hundred nine million, four hundred sixty-nine thousand, seven hundred thirty".