223402231 has 4 divisors (see below), whose sum is σ = 240587032. Its totient is φ = 206217432.

The previous prime is 223402217. The next prime is 223402237. The reversal of 223402231 is 132204322.

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

It is a cyclic number.

It is not a de Polignac number, because 223402231 - 2⁵ = 223402199 is a prime.

It is a super-2 number, since 2×223402231² = 99817113631554722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223402199 and 223402208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223402237) 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, 8592381 + ... + 8592406.

It is an arithmetic number, because the mean of its divisors is an integer number (60146758).

Almost surely, 2^223402231 is an apocalyptic number.

223402231 is a deficient number, since it is larger than the sum of its proper divisors (17184801).

223402231 is a wasteful number, since it uses less digits than its factorization.

223402231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17184800.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 223402231 is about 14946.6461455405. The cubic root of 223402231 is about 606.7770813334. Note that the first 3 decimals are identical.

Adding to 223402231 its reverse (132204322), we get a palindrome (355606553).

The spelling of 223402231 in words is "two hundred twenty-three million, four hundred two thousand, two hundred thirty-one".