223311042 has 24 divisors (see below), whose sum is σ = 499449600. Its totient is φ = 72035640.

The previous prime is 223311041. The next prime is 223311079. The reversal of 223311042 is 240113322.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (223311041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199542 + ... + 200657.

It is an arithmetic number, because the mean of its divisors is an integer number (20810400).

Almost surely, 2^223311042 is an apocalyptic number.

223311042 is an abundant number, since it is smaller than the sum of its proper divisors (276138558).

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

223311042 is a wasteful number, since it uses less digits than its factorization.

223311042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400238 (or 400235 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 223311042 is about 14943.5953505172. The cubic root of 223311042 is about 606.6945113949.

Adding to 223311042 its reverse (240113322), we get a palindrome (463424364).

The spelling of 223311042 in words is "two hundred twenty-three million, three hundred eleven thousand, forty-two".