223402023 has 16 divisors (see below), whose sum is σ = 356425440. Its totient is φ = 137477952.

The previous prime is 223402021. The next prime is 223402033. The reversal of 223402023 is 320204322.

It is not a de Polignac number, because 223402023 - 2¹ = 223402021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223401987 and 223402005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223402021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317886 + ... + 318587.

It is an arithmetic number, because the mean of its divisors is an integer number (22276590).

Almost surely, 2^223402023 is an apocalyptic number.

223402023 is a deficient number, since it is larger than the sum of its proper divisors (133023417).

223402023 is a wasteful number, since it uses less digits than its factorization.

223402023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636495 (or 636489 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 223402023 is about 14946.6391874562. The cubic root of 223402023 is about 606.7768930188.

Adding to 223402023 its reverse (320204322), we get a palindrome (543606345).

The spelling of 223402023 in words is "two hundred twenty-three million, four hundred two thousand, twenty-three".