404437 has 4 divisors (see below), whose sum is σ = 441216. Its totient is φ = 367660.

The previous prime is 404431. The next prime is 404449. The reversal of 404437 is 734404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 404437 - 2³ = 404429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404431) by changing a digit.

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, 18373 + ... + 18394.

It is an arithmetic number, because the mean of its divisors is an integer number (110304).

2⁴⁰⁴⁴³⁷ is an apocalyptic number.

It is an amenable number.

404437 is a deficient number, since it is larger than the sum of its proper divisors (36779).

404437 is a wasteful number, since it uses less digits than its factorization.

404437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36778.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 404437 is about 635.9536146607. The cubic root of 404437 is about 73.9520629390.

It can be divided in two parts, 404 and 437, that added together give a square (841 = 29²).

The spelling of 404437 in words is "four hundred four thousand, four hundred thirty-seven".