223444394 has 8 divisors (see below), whose sum is σ = 335397348. Its totient is φ = 111645280.

The previous prime is 223444393. The next prime is 223444409. The reversal of 223444394 is 493444322.

It can be written as a sum of positive squares in 2 ways, for example, as 205492225 + 17952169 = 14335^2 + 4237^2 .

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

It is not an unprimeable number, because it can be changed into a prime (223444393) 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, 34757 + ... + 40680.

Almost surely, 2^223444394 is an apocalyptic number.

223444394 is a deficient number, since it is larger than the sum of its proper divisors (111952954).

223444394 is a wasteful number, since it uses less digits than its factorization.

223444394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76920.

The product of its digits is 82944, while the sum is 35.

The square root of 223444394 is about 14948.0565291947. The cubic root of 223444394 is about 606.8152515472.

The spelling of 223444394 in words is "two hundred twenty-three million, four hundred forty-four thousand, three hundred ninety-four".