223208434 has 4 divisors (see below), whose sum is σ = 334812654. Its totient is φ = 111604216.

The previous prime is 223208393. The next prime is 223208437. The reversal of 223208434 is 434802322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434802322 = 2 ⋅217401161.

It can be written as a sum of positive squares in only one way, i.e., 201725209 + 21483225 = 14203^2 + 4635^2 .

It is a super-3 number, since 3×223208434³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223208437) 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 as a sum of consecutive naturals, namely, 55802107 + ... + 55802110.

Almost surely, 2^223208434 is an apocalyptic number.

223208434 is a deficient number, since it is larger than the sum of its proper divisors (111604220).

223208434 is a wasteful number, since it uses less digits than its factorization.

223208434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111604219.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 223208434 is about 14940.1617795792. The cubic root of 223208434 is about 606.6015748837.

The spelling of 223208434 in words is "two hundred twenty-three million, two hundred eight thousand, four hundred thirty-four".