404135 has 8 divisors (see below), whose sum is σ = 489456. Its totient is φ = 320320.

The previous prime is 404123. The next prime is 404161. The reversal of 404135 is 531404.

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

It is not a de Polignac number, because 404135 - 2⁴ = 404119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347 + ... + 963.

It is an arithmetic number, because the mean of its divisors is an integer number (61182).

2⁴⁰⁴¹³⁵ is an apocalyptic number.

404135 is a deficient number, since it is larger than the sum of its proper divisors (85321).

404135 is a wasteful number, since it uses less digits than its factorization.

404135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 404135 is about 635.7161316185. The cubic root of 404135 is about 73.9336512670.

Adding to 404135 its reverse (531404), we get a palindrome (935539).

The spelling of 404135 in words is "four hundred four thousand, one hundred thirty-five".