404308 has 12 divisors (see below), whose sum is σ = 719572. Its totient is φ = 198720.

The previous prime is 404291. The next prime is 404309. The reversal of 404308 is 803404.

It can be written as a sum of positive squares in 2 ways, for example, as 58564 + 345744 = 242^2 + 588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404309) by changing a digit.

404308 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585 + ... + 1072.

2⁴⁰⁴³⁰⁸ is an apocalyptic number.

It is an amenable number.

404308 is a deficient number, since it is larger than the sum of its proper divisors (315264).

404308 is a wasteful number, since it uses less digits than its factorization.

404308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 404308 is about 635.8521840805. The cubic root of 404308 is about 73.9441994724.

The spelling of 404308 in words is "four hundred four thousand, three hundred eight".