223212430 has 32 divisors (see below), whose sum is σ = 462283200. Its totient is φ = 76012800.

The previous prime is 223212419. The next prime is 223212439. The reversal of 223212430 is 34212322.

It is a super-3 number, since 3×223212430³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223212398 and 223212407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223212439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271 + ... + 21130.

It is an arithmetic number, because the mean of its divisors is an integer number (14446350).

Almost surely, 2^223212430 is an apocalyptic number.

223212430 is an abundant number, since it is smaller than the sum of its proper divisors (239070770).

223212430 is a wasteful number, since it uses less digits than its factorization.

223212430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21564.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 223212430 is about 14940.2955124723. The cubic root of 223212430 is about 606.6051947670.

Adding to 223212430 its reverse (34212322), we get a palindrome (257424752).

The spelling of 223212430 in words is "two hundred twenty-three million, two hundred twelve thousand, four hundred thirty".