233443423 has 16 divisors (see below), whose sum is σ = 245846016. Its totient is φ = 221397120.

The previous prime is 233443409. The next prime is 233443453. The reversal of 233443423 is 324344332.

It is a cyclic number.

It is not a de Polignac number, because 233443423 - 2¹⁷ = 233312351 is a prime.

It is a super-4 number, since 4×233443423⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233443391 and 233443400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233443453) 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, 360486 + ... + 361132.

It is an arithmetic number, because the mean of its divisors is an integer number (15365376).

Almost surely, 2^233443423 is an apocalyptic number.

233443423 is a deficient number, since it is larger than the sum of its proper divisors (12402593).

233443423 is a wasteful number, since it uses less digits than its factorization.

233443423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894.

The product of its digits is 20736, while the sum is 28.

The square root of 233443423 is about 15278.8554217913. The cubic root of 233443423 is about 615.7350569399.

Adding to 233443423 its reverse (324344332), we get a palindrome (557787755).

Subtracting 233443423 from its reverse (324344332), we obtain a palindrome (90900909).

The spelling of 233443423 in words is "two hundred thirty-three million, four hundred forty-three thousand, four hundred twenty-three".