500221332 has 144 divisors (see below), whose sum is σ = 1458842112. Its totient is φ = 148832640.

The previous prime is 500221327. The next prime is 500221333. The reversal of 500221332 is 233122005.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500221333) 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, 391078 + ... + 392354.

It is an arithmetic number, because the mean of its divisors is an integer number (10130848).

Almost surely, 2^500221332 is an apocalyptic number.

500221332 is a gapful number since it is divisible by the number (52) 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 500221332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (729421056).

500221332 is an abundant number, since it is smaller than the sum of its proper divisors (958620780).

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

500221332 is a wasteful number, since it uses less digits than its factorization.

500221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 500221332 is about 22365.6283613942. The cubic root of 500221332 is about 793.8176229241.

Adding to 500221332 its reverse (233122005), we get a palindrome (733343337).

The spelling of 500221332 in words is "five hundred million, two hundred twenty-one thousand, three hundred thirty-two".