520344005 has 8 divisors (see below), whose sum is σ = 624904224. Its totient is φ = 415947600.

The previous prime is 520343933. The next prime is 520344029. The reversal of 520344005 is 500443025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520344005 - 2²⁰ = 519295429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33851 + ... + 46760.

It is an arithmetic number, because the mean of its divisors is an integer number (78113028).

Almost surely, 2^520344005 is an apocalyptic number.

It is an amenable number.

520344005 is a deficient number, since it is larger than the sum of its proper divisors (104560219).

520344005 is a wasteful number, since it uses less digits than its factorization.

520344005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81907.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 520344005 is about 22811.0500635109. The cubic root of 520344005 is about 804.3224395217.

The spelling of 520344005 in words is "five hundred twenty million, three hundred forty-four thousand, five".