220030452 has 48 divisors (see below), whose sum is σ = 575713600. Its totient is φ = 72666720.

The previous prime is 220030429. The next prime is 220030471. The reversal of 220030452 is 254030022.

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 15 ways as a sum of consecutive naturals, for example, 2427 + ... + 21117.

Almost surely, 2^220030452 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 220030452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287856800).

220030452 is an abundant number, since it is smaller than the sum of its proper divisors (355683148).

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

220030452 is a wasteful number, since it uses less digits than its factorization.

220030452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18813 (or 18805 counting only the distinct ones).

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

The square root of 220030452 is about 14833.4234753815. The cubic root of 220030452 is about 603.7089258736.

Adding to 220030452 its reverse (254030022), we get a palindrome (474060474).

The spelling of 220030452 in words is "two hundred twenty million, thirty thousand, four hundred fifty-two".