520342218 has 96 divisors (see below), whose sum is σ = 1286917632. Its totient is φ = 156265200.

The previous prime is 520342201. The next prime is 520342219. The reversal of 520342218 is 812243025.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 520342191 and 520342200.

It is not an unprimeable number, because it can be changed into a prime (520342219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 699955 + ... + 700697.

It is an arithmetic number, because the mean of its divisors is an integer number (13405392).

Almost surely, 2^520342218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520342218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643458816).

520342218 is an abundant number, since it is smaller than the sum of its proper divisors (766575414).

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

520342218 is a wasteful number, since it uses less digits than its factorization.

520342218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 520342218 is about 22811.0108938644. The cubic root of 520342218 is about 804.3215187681.

The spelling of 520342218 in words is "five hundred twenty million, three hundred forty-two thousand, two hundred eighteen".