220730352 has 80 divisors (see below), whose sum is σ = 587283840. Its totient is φ = 71398656.

The previous prime is 220730303. The next prime is 220730381. The reversal of 220730352 is 253037022.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472423 + ... + 472889.

It is an arithmetic number, because the mean of its divisors is an integer number (7341048).

Almost surely, 2^220730352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220730352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293641920).

220730352 is an abundant number, since it is smaller than the sum of its proper divisors (366553488).

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

220730352 is a wasteful number, since it uses less digits than its factorization.

220730352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 220730352 is about 14856.9967355452. The cubic root of 220730352 is about 604.3483656199.

Adding to 220730352 its reverse (253037022), we get a palindrome (473767374).

The spelling of 220730352 in words is "two hundred twenty million, seven hundred thirty thousand, three hundred fifty-two".