223443442 has 16 divisors (see below), whose sum is σ = 345824640. Its totient is φ = 108222192.

The previous prime is 223443433. The next prime is 223443491. The reversal of 223443442 is 244344322.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 223443442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4968 + ... + 21715.

It is an arithmetic number, because the mean of its divisors is an integer number (21614040).

Almost surely, 2^223443442 is an apocalyptic number.

223443442 is a deficient number, since it is larger than the sum of its proper divisors (122381198).

223443442 is a wasteful number, since it uses less digits than its factorization.

223443442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26817.

The product of its digits is 18432, while the sum is 28.

The square root of 223443442 is about 14948.0246855563. The cubic root of 223443442 is about 606.8143897535.

Adding to 223443442 its reverse (244344322), we get a palindrome (467787764).

The spelling of 223443442 in words is "two hundred twenty-three million, four hundred forty-three thousand, four hundred forty-two".