223446044420 has 24 divisors (see below), whose sum is σ = 470543774400. Its totient is φ = 89129449952.

The previous prime is 223446044417. The next prime is 223446044431. The reversal of 223446044420 is 24440644322.

It is a super-2 number, since 2×223446044420² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15553130 + ... + 15567489.

It is an arithmetic number, because the mean of its divisors is an integer number (19605990600).

Almost surely, 2^223446044420 is an apocalyptic number.

223446044420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223446044420 is an abundant number, since it is smaller than the sum of its proper divisors (247097729980).

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

223446044420 is a wasteful number, since it uses less digits than its factorization.

223446044420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31120987 (or 31120985 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 223446044420 its reverse (24440644322), we get a palindrome (247886688742).

The spelling of 223446044420 in words is "two hundred twenty-three billion, four hundred forty-six million, forty-four thousand, four hundred twenty".