520344445 has 32 divisors (see below), whose sum is σ = 651442176. Its totient is φ = 398798400.

The previous prime is 520344443. The next prime is 520344467. The reversal of 520344445 is 544443025.

It is not a de Polignac number, because 520344445 - 2¹ = 520344443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520344443) 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, 3115752 + ... + 3115918.

It is an arithmetic number, because the mean of its divisors is an integer number (20357568).

Almost surely, 2^520344445 is an apocalyptic number.

It is an amenable number.

520344445 is a deficient number, since it is larger than the sum of its proper divisors (131097731).

520344445 is a wasteful number, since it uses less digits than its factorization.

520344445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 520344445 is about 22811.0597079575. The cubic root of 520344445 is about 804.3226662318.

The spelling of 520344445 in words is "five hundred twenty million, three hundred forty-four thousand, four hundred forty-five".