223403442 has 8 divisors (see below), whose sum is σ = 446806896. Its totient is φ = 74467812.

The previous prime is 223403431. The next prime is 223403491. The reversal of 223403442 is 244304322.

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

223403442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18616948 + ... + 18616959.

It is an arithmetic number, because the mean of its divisors is an integer number (55850862).

Almost surely, 2^223403442 is an apocalyptic number.

223403442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223403442 is a wasteful number, since it uses less digits than its factorization.

223403442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37233912.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 223403442 is about 14946.6866562459. The cubic root of 223403442 is about 606.7781777201.

Adding to 223403442 its reverse (244304322), we get a palindrome (467707764).

The spelling of 223403442 in words is "two hundred twenty-three million, four hundred three thousand, four hundred forty-two".