502225218 has 64 divisors (see below), whose sum is σ = 1220313600. Its totient is φ = 151840080.

The previous prime is 502225201. The next prime is 502225231. The reversal of 502225218 is 812522205.

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 = 502225191 and 502225200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390805 + ... + 392087.

It is an arithmetic number, because the mean of its divisors is an integer number (19067400).

Almost surely, 2^502225218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 502225218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (610156800).

502225218 is an abundant number, since it is smaller than the sum of its proper divisors (718088382).

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

502225218 is a wasteful number, since it uses less digits than its factorization.

502225218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 502225218 is about 22410.3819244564. The cubic root of 502225218 is about 794.8762213842.

The spelling of 502225218 in words is "five hundred two million, two hundred twenty-five thousand, two hundred eighteen".