223402444 has 12 divisors (see below), whose sum is σ = 391805568. Its totient is φ = 111458000.

The previous prime is 223402433. The next prime is 223402447. The reversal of 223402444 is 444204322.

223402444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (223402447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58732 + ... + 62419.

It is an arithmetic number, because the mean of its divisors is an integer number (32650464).

Almost surely, 2^223402444 is an apocalyptic number.

It is an amenable number.

223402444 is a deficient number, since it is larger than the sum of its proper divisors (168403124).

223402444 is a wasteful number, since it uses less digits than its factorization.

223402444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121616 (or 121614 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 223402444 is about 14946.6532708831. The cubic root of 223402444 is about 606.7772741746. Note that the first 3 decimals are identical.

Adding to 223402444 its reverse (444204322), we get a palindrome (667606766).

The spelling of 223402444 in words is "two hundred twenty-three million, four hundred two thousand, four hundred forty-four".