223720233 has 16 divisors (see below), whose sum is σ = 325915392. Its totient is φ = 135378000.

The previous prime is 223720213. The next prime is 223720243. The reversal of 223720233 is 332027322.

It is not a de Polignac number, because 223720233 - 2¹² = 223716137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223720213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17898 + ... + 27708.

It is an arithmetic number, because the mean of its divisors is an integer number (20369712).

Almost surely, 2^223720233 is an apocalyptic number.

It is an amenable number.

223720233 is a deficient number, since it is larger than the sum of its proper divisors (102195159).

223720233 is a wasteful number, since it uses less digits than its factorization.

223720233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516.

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 223720233 is about 14957.2802674818. The cubic root of 223720233 is about 607.0648505323.

Adding to 223720233 its reverse (332027322), we get a palindrome (555747555).

The spelling of 223720233 in words is "two hundred twenty-three million, seven hundred twenty thousand, two hundred thirty-three".