404315 has 4 divisors (see below), whose sum is σ = 485184. Its totient is φ = 323448.

The previous prime is 404309. The next prime is 404321. The reversal of 404315 is 513404.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (404309) and next prime (404321).

It is a cyclic number.

It is not a de Polignac number, because 404315 - 2⁶ = 404251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404293 and 404302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40427 + ... + 40436.

It is an arithmetic number, because the mean of its divisors is an integer number (121296).

2⁴⁰⁴³¹⁵ is an apocalyptic number.

404315 is a deficient number, since it is larger than the sum of its proper divisors (80869).

404315 is an equidigital number, since it uses as much as digits as its factorization.

404315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80868.

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

The square root of 404315 is about 635.8576884807. The cubic root of 404315 is about 73.9446262151.

Adding to 404315 its reverse (513404), we get a palindrome (917719).

It can be divided in two parts, 404 and 315, that multiplied together give a triangular number (127260 = T₅₀₄).

The spelling of 404315 in words is "four hundred four thousand, three hundred fifteen".