520443000 has 384 divisors, whose sum is σ = 2196080640. Its totient is φ = 108000000.

The previous prime is 520442939. The next prime is 520443023. The reversal of 520443000 is 344025.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 692625 + ... + 693375.

It is an arithmetic number, because the mean of its divisors is an integer number (5718960).

Almost surely, 2^520443000 is an apocalyptic number.

520443000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520443000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1098040320).

520443000 is an abundant number, since it is smaller than the sum of its proper divisors (1675637640).

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

520443000 is a wasteful number, since it uses less digits than its factorization.

520443000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 520443000 is about 22813.2198516562. The cubic root of 520443000 is about 804.3734435050.

Adding to 520443000 its reverse (344025), we get a palindrome (520787025).

The spelling of 520443000 in words is "five hundred twenty million, four hundred forty-three thousand".