520423306 has 32 divisors (see below), whose sum is σ = 863654400. Its totient is φ = 233716800.

The previous prime is 520423279. The next prime is 520423349. The reversal of 520423306 is 603324025.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 153255 + ... + 156613.

It is an arithmetic number, because the mean of its divisors is an integer number (26989200).

Almost surely, 2^520423306 is an apocalyptic number.

520423306 is a deficient number, since it is larger than the sum of its proper divisors (343231094).

520423306 is a wasteful number, since it uses less digits than its factorization.

520423306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 520423306 is about 22812.7882118780. The cubic root of 520423306 is about 804.3632973216.

The spelling of 520423306 in words is "five hundred twenty million, four hundred twenty-three thousand, three hundred six".