223212434 has 8 divisors (see below), whose sum is σ = 336064140. Its totient is φ = 111191056.

The previous prime is 223212419. The next prime is 223212439. The reversal of 223212434 is 434212322.

It can be written as a sum of positive squares in 2 ways, for example, as 222099409 + 1113025 = 14903^2 + 1055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×223212434³ (a number of 26 digits) contains 333 as substring.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206909 + ... + 207984.

Almost surely, 2^223212434 is an apocalyptic number.

223212434 is a deficient number, since it is larger than the sum of its proper divisors (112851706).

223212434 is a wasteful number, since it uses less digits than its factorization.

223212434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415164.

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

The square root of 223212434 is about 14940.2956463385. The cubic root of 223212434 is about 606.6051983905.

Adding to 223212434 its reverse (434212322), we get a palindrome (657424756).

The spelling of 223212434 in words is "two hundred twenty-three million, two hundred twelve thousand, four hundred thirty-four".