404233223 has 2 divisors, whose sum is σ = 404233224. Its totient is φ = 404233222.

The previous prime is 404233213. The next prime is 404233231. The reversal of 404233223 is 322332404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404233223 is a prime.

It is a Sophie Germain prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404233213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202116611 + 202116612.

It is an arithmetic number, because the mean of its divisors is an integer number (202116612).

Almost surely, 2^404233223 is an apocalyptic number.

404233223 is a deficient number, since it is larger than the sum of its proper divisors (1).

404233223 is an equidigital number, since it uses as much as digits as its factorization.

404233223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 404233223 is about 20105.5520441494. The cubic root of 404233223 is about 739.3964051708.

Adding to 404233223 its reverse (322332404), we get a palindrome (726565627).

The spelling of 404233223 in words is "four hundred four million, two hundred thirty-three thousand, two hundred twenty-three".