520444244004 has 24 divisors (see below), whose sum is σ = 1278284108640. Its totient is φ = 164350813824.

The previous prime is 520444243999. The next prime is 520444244069. The reversal of 520444244004 is 400442444025.

It is a happy number.

It is a super-2 number, since 2×520444244004² (a number of 24 digits) contains 22 as substring.

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, 1141324869 + ... + 1141325324.

It is an arithmetic number, because the mean of its divisors is an integer number (53261837860).

Almost surely, 2^520444244004 is an apocalyptic number.

It is an amenable number.

520444244004 is an abundant number, since it is smaller than the sum of its proper divisors (757839864636).

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

520444244004 is a wasteful number, since it uses less digits than its factorization.

520444244004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282650219 (or 2282650217 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 33.

Adding to 520444244004 its reverse (400442444025), we get a palindrome (920886688029).

The spelling of 520444244004 in words is "five hundred twenty billion, four hundred forty-four million, two hundred forty-four thousand, four".