506640306 has 16 divisors (see below), whose sum is σ = 1015062048. Its totient is φ = 168583200.

The previous prime is 506640293. The next prime is 506640313. The reversal of 506640306 is 603046605.

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, 70515 + ... + 77366.

It is an arithmetic number, because the mean of its divisors is an integer number (63441378).

Almost surely, 2^506640306 is an apocalyptic number.

506640306 is an abundant number, since it is smaller than the sum of its proper divisors (508421742).

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

506640306 is a wasteful number, since it uses less digits than its factorization.

506640306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148457.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 506640306 is about 22508.6717955547. The cubic root of 506640306 is about 797.1986950207.

The spelling of 506640306 in words is "five hundred six million, six hundred forty thousand, three hundred six".