223243412 has 18 divisors (see below), whose sum is σ = 454460202. Its totient is φ = 95675664.

The previous prime is 223243411. The next prime is 223243457. The reversal of 223243412 is 214342322.

223243412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 163737616 + 59505796 = 12796^2 + 7714^2 .

It is a super-3 number, since 3×223243412³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223243411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 569303 + ... + 569694.

It is an arithmetic number, because the mean of its divisors is an integer number (25247789).

Almost surely, 2^223243412 is an apocalyptic number.

It is an amenable number.

223243412 is an abundant number, since it is smaller than the sum of its proper divisors (231216790).

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

223243412 is a wasteful number, since it uses less digits than its factorization.

223243412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139015 (or 1139006 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 223243412 is about 14941.3323368433. The cubic root of 223243412 is about 606.6332591729.

Adding to 223243412 its reverse (214342322), we get a palindrome (437585734).

The spelling of 223243412 in words is "two hundred twenty-three million, two hundred forty-three thousand, four hundred twelve".