223784426 has 4 divisors (see below), whose sum is σ = 335676642. Its totient is φ = 111892212.

The previous prime is 223784423. The next prime is 223784453. The reversal of 223784426 is 624487322.

223784426 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 171583801 + 52200625 = 13099^2 + 7225^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 223784426.

It is not an unprimeable number, because it can be changed into a prime (223784423) by changing a digit.

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 as a sum of consecutive naturals, namely, 55946105 + ... + 55946108.

Almost surely, 2^223784426 is an apocalyptic number.

223784426 is a deficient number, since it is larger than the sum of its proper divisors (111892216).

223784426 is a wasteful number, since it uses less digits than its factorization.

223784426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111892215.

The product of its digits is 129024, while the sum is 38.

The square root of 223784426 is about 14959.4259916616. The cubic root of 223784426 is about 607.1229075482.

The spelling of 223784426 in words is "two hundred twenty-three million, seven hundred eighty-four thousand, four hundred twenty-six".