223312394 has 4 divisors (see below), whose sum is σ = 334968594. Its totient is φ = 111656196.

The previous prime is 223312393. The next prime is 223312417. The reversal of 223312394 is 493213322.

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., 175218169 + 48094225 = 13237^2 + 6935^2 .

It is a super-2 number, since 2×223312394² = 99736850628022472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (223312393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55828097 + ... + 55828100.

Almost surely, 2^223312394 is an apocalyptic number.

223312394 is a deficient number, since it is larger than the sum of its proper divisors (111656200).

223312394 is a wasteful number, since it uses less digits than its factorization.

223312394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111656199.

The product of its digits is 7776, while the sum is 29.

The square root of 223312394 is about 14943.6405872197. The cubic root of 223312394 is about 606.6957357698.

The spelling of 223312394 in words is "two hundred twenty-three million, three hundred twelve thousand, three hundred ninety-four".