404291 has 2 divisors, whose sum is σ = 404292. Its totient is φ = 404290.

The previous prime is 404273. The next prime is 404309. The reversal of 404291 is 192404.

It is a balanced prime because it is at equal distance from previous prime (404273) and next prime (404309).

It is a cyclic number.

It is not a de Polignac number, because 404291 - 2¹⁰ = 403267 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (404221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202145 + 202146.

It is an arithmetic number, because the mean of its divisors is an integer number (202146).

2⁴⁰⁴²⁹¹ is an apocalyptic number.

404291 is a deficient number, since it is larger than the sum of its proper divisors (1).

404291 is an equidigital number, since it uses as much as digits as its factorization.

404291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 404291 is about 635.8388160533. The cubic root of 404291 is about 73.9431630769.

Adding to 404291 its reverse (192404), we get a palindrome (596695).

The spelling of 404291 in words is "four hundred four thousand, two hundred ninety-one".