223402534 has 8 divisors (see below), whose sum is σ = 335168280. Its totient is φ = 111679776.

The previous prime is 223402511. The next prime is 223402541. The reversal of 223402534 is 435204322.

223402534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 223402499 and 223402508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11262 + ... + 23950.

It is an arithmetic number, because the mean of its divisors is an integer number (41896035).

Almost surely, 2^223402534 is an apocalyptic number.

223402534 is a deficient number, since it is larger than the sum of its proper divisors (111765746).

223402534 is a wasteful number, since it uses less digits than its factorization.

223402534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21494.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 223402534 is about 14946.6562815902. The cubic root of 223402534 is about 606.7773556568. Note that the first 3 decimals are identical.

Adding to 223402534 its reverse (435204322), we get a palindrome (658606856).

The spelling of 223402534 in words is "two hundred twenty-three million, four hundred two thousand, five hundred thirty-four".