223643332 has 18 divisors (see below), whose sum is σ = 430190894. Its totient is φ = 101655840.

The previous prime is 223643309. The next prime is 223643339. The reversal of 223643332 is 233346322.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 117635716 + 106007616 = 10846^2 + 10296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 223643332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223643339) 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, 230553 + ... + 231520.

Almost surely, 2^223643332 is an apocalyptic number.

223643332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

223643332 is a deficient number, since it is larger than the sum of its proper divisors (206547562).

223643332 is a wasteful number, since it uses less digits than its factorization.

223643332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462099 (or 462086 counting only the distinct ones).

The product of its digits is 15552, while the sum is 28.

The square root of 223643332 is about 14954.7093585934. The cubic root of 223643332 is about 606.9952856067.

Adding to 223643332 its reverse (233346322), we get a palindrome (456989654).

The spelling of 223643332 in words is "two hundred twenty-three million, six hundred forty-three thousand, three hundred thirty-two".