404269 has 2 divisors, whose sum is σ = 404270. Its totient is φ = 404268.

The previous prime is 404267. The next prime is 404273. The reversal of 404269 is 962404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348100 + 56169 = 590^2 + 237^2 .

It is a cyclic number.

It is not a de Polignac number, because 404269 - 2¹ = 404267 is a prime.

It is a super-2 number, since 2×404269² = 326866848722, which contains 22 as substring.

Together with 404267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202134 + 202135.

It is an arithmetic number, because the mean of its divisors is an integer number (202135).

2⁴⁰⁴²⁶⁹ is an apocalyptic number.

It is an amenable number.

404269 is a deficient number, since it is larger than the sum of its proper divisors (1).

404269 is an equidigital number, since it uses as much as digits as its factorization.

404269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 404269 is about 635.8215158360. The cubic root of 404269 is about 73.9418218160.

The spelling of 404269 in words is "four hundred four thousand, two hundred sixty-nine".