223402044 has 12 divisors (see below), whose sum is σ = 521271464. Its totient is φ = 74467344.

The previous prime is 223402033. The next prime is 223402063. The reversal of 223402044 is 440204322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 223402044.

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, 9308407 + ... + 9308430.

Almost surely, 2^223402044 is an apocalyptic number.

It is an amenable number.

223402044 is an abundant number, since it is smaller than the sum of its proper divisors (297869420).

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

223402044 is a wasteful number, since it uses less digits than its factorization.

223402044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18616844 (or 18616842 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 223402044 is about 14946.6398899552. The cubic root of 223402044 is about 606.7769120314.

Adding to 223402044 its reverse (440204322), we get a palindrome (663606366).

The spelling of 223402044 in words is "two hundred twenty-three million, four hundred two thousand, forty-four".