220321452 has 24 divisors (see below), whose sum is σ = 553628656. Its totient is φ = 67791168.

The previous prime is 220321427. The next prime is 220321459. The reversal of 220321452 is 254123022.

220321452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220321452² = 97083084422776608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220321459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706003 + ... + 706314.

Almost surely, 2^220321452 is an apocalyptic number.

It is an amenable number.

220321452 is an abundant number, since it is smaller than the sum of its proper divisors (333307204).

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

220321452 is a wasteful number, since it uses less digits than its factorization.

220321452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412337 (or 1412335 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 220321452 is about 14843.2291634940. The cubic root of 220321452 is about 603.9749525452.

Adding to 220321452 its reverse (254123022), we get a palindrome (474444474).

The spelling of 220321452 in words is "two hundred twenty million, three hundred twenty-one thousand, four hundred fifty-two".