506340009 has 48 divisors (see below), whose sum is σ = 876675072. Its totient is φ = 275340384.

The previous prime is 506339959. The next prime is 506340017. The reversal of 506340009 is 900043605.

It is a happy number.

It is not a de Polignac number, because 506340009 - 2¹² = 506335913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (506340049) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 322344 + ... + 323910.

It is an arithmetic number, because the mean of its divisors is an integer number (18264064).

Almost surely, 2^506340009 is an apocalyptic number.

It is an amenable number.

506340009 is a deficient number, since it is larger than the sum of its proper divisors (370335063).

506340009 is a wasteful number, since it uses less digits than its factorization.

506340009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826 (or 1823 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 506340009 is about 22502.0001111012. Note that the first 3 decimals coincide. The cubic root of 506340009 is about 797.0411580806.

The spelling of 506340009 in words is "five hundred six million, three hundred forty thousand, nine".