223444442 has 8 divisors (see below), whose sum is σ = 360948756. Its totient is φ = 103128192.

The previous prime is 223444409. The next prime is 223444453. The reversal of 223444442 is 244444322.

It can be written as a sum of positive squares in 2 ways, for example, as 222636241 + 808201 = 14921^2 + 899^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4296983 + ... + 4297034.

Almost surely, 2^223444442 is an apocalyptic number.

223444442 is a deficient number, since it is larger than the sum of its proper divisors (137504314).

223444442 is a wasteful number, since it uses less digits than its factorization.

223444442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8594032.

The product of its digits is 24576, while the sum is 29.

The square root of 223444442 is about 14948.0581347545. The cubic root of 223444442 is about 606.8152949989.

Adding to 223444442 its reverse (244444322), we get a palindrome (467888764).

The spelling of 223444442 in words is "two hundred twenty-three million, four hundred forty-four thousand, four hundred forty-two".