220323210400 has 36 divisors (see below), whose sum is σ = 537864039342. Its totient is φ = 88129283840.

The previous prime is 220323210397. The next prime is 220323210451. The reversal of 220323210400 is 4012323022.

It can be written as a sum of positive squares in 3 ways, for example, as 205611461136 + 14711749264 = 453444^2 + 121292^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137701207 + ... + 137702806.

Almost surely, 2^220323210400 is an apocalyptic number.

220323210400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220323210400 is an abundant number, since it is smaller than the sum of its proper divisors (317540828942).

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

220323210400 is a wasteful number, since it uses less digits than its factorization.

220323210400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275404033 (or 275404020 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 220323210400 its reverse (4012323022), we get a palindrome (224335533422).

The spelling of 220323210400 in words is "two hundred twenty billion, three hundred twenty-three million, two hundred ten thousand, four hundred".