404838023 has 2 divisors, whose sum is σ = 404838024. Its totient is φ = 404838022.

The previous prime is 404838011. The next prime is 404838079. The reversal of 404838023 is 320838404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404838023 - 2¹² = 404833927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404838523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202419011 + 202419012.

It is an arithmetic number, because the mean of its divisors is an integer number (202419012).

Almost surely, 2^404838023 is an apocalyptic number.

404838023 is a deficient number, since it is larger than the sum of its proper divisors (1).

404838023 is an equidigital number, since it uses as much as digits as its factorization.

404838023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 404838023 is about 20120.5870441198. The cubic root of 404838023 is about 739.7649746695.

The spelling of 404838023 in words is "four hundred four million, eight hundred thirty-eight thousand, twenty-three".