404265 has 8 divisors (see below), whose sum is σ = 646848. Its totient is φ = 215600.

The previous prime is 404251. The next prime is 404267. The reversal of 404265 is 562404.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 404265 - 2⁴ = 404249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13461 + ... + 13490.

It is an arithmetic number, because the mean of its divisors is an integer number (80856).

2⁴⁰⁴²⁶⁵ is an apocalyptic number.

It is an amenable number.

404265 is a deficient number, since it is larger than the sum of its proper divisors (242583).

404265 is a wasteful number, since it uses less digits than its factorization.

404265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26959.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 404265 is about 635.8183702914. The cubic root of 404265 is about 73.9415779452.

Adding to 404265 its reverse (562404), we get a palindrome (966669).

The spelling of 404265 in words is "four hundred four thousand, two hundred sixty-five".