404396 has 24 divisors (see below), whose sum is σ = 791280. Its totient is φ = 179712.

The previous prime is 404389. The next prime is 404399. The reversal of 404396 is 693404.

It is a super-2 number, since 2×404396² = 327072249632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404399) 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, 1136 + ... + 1448.

It is an arithmetic number, because the mean of its divisors is an integer number (32970).

2⁴⁰⁴³⁹⁶ is an apocalyptic number.

It is an amenable number.

404396 is a deficient number, since it is larger than the sum of its proper divisors (386884).

404396 is a wasteful number, since it uses less digits than its factorization.

404396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 404396 is about 635.9213787883. The cubic root of 404396 is about 73.9495638790.

The spelling of 404396 in words is "four hundred four thousand, three hundred ninety-six".