223312440304 has 40 divisors (see below), whose sum is σ = 448070094000. Its totient is φ = 107689752576.

The previous prime is 223312440301. The next prime is 223312440311. The reversal of 223312440304 is 403044213322.

It is a super-2 number, since 2×223312440304² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223312440301) 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, 172027 + ... + 690085.

It is an arithmetic number, because the mean of its divisors is an integer number (11201752350).

Almost surely, 2^223312440304 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 223312440304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224035047000).

223312440304 is an abundant number, since it is smaller than the sum of its proper divisors (224757653696).

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

223312440304 is a wasteful number, since it uses less digits than its factorization.

223312440304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519025 (or 519019 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 223312440304 its reverse (403044213322), we get a palindrome (626356653626).

The spelling of 223312440304 in words is "two hundred twenty-three billion, three hundred twelve million, four hundred forty thousand, three hundred four".