223420100 has 72 divisors (see below), whose sum is σ = 506300928. Its totient is φ = 85478400.

The previous prime is 223420073. The next prime is 223420117. The reversal of 223420100 is 1024322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300329 + ... + 301071.

Almost surely, 2^223420100 is an apocalyptic number.

223420100 is a gapful number since it is divisible by the number (20) 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 223420100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253150464).

223420100 is an abundant number, since it is smaller than the sum of its proper divisors (282880828).

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

223420100 is a wasteful number, since it uses less digits than its factorization.

223420100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 223420100 is about 14947.2438931062. The cubic root of 223420100 is about 606.7932587466.

Adding to 223420100 its reverse (1024322), we get a palindrome (224444422).

The spelling of 223420100 in words is "two hundred twenty-three million, four hundred twenty thousand, one hundred".