404371 has 4 divisors (see below), whose sum is σ = 441144. Its totient is φ = 367600.

The previous prime is 404357. The next prime is 404381. The reversal of 404371 is 173404.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18370 + ... + 18391.

It is an arithmetic number, because the mean of its divisors is an integer number (110286).

2⁴⁰⁴³⁷¹ is an apocalyptic number.

404371 is a deficient number, since it is larger than the sum of its proper divisors (36773).

404371 is a wasteful number, since it uses less digits than its factorization.

404371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36772.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 404371 is about 635.9017219665. The cubic root of 404371 is about 73.9480399790.

Adding to 404371 its reverse (173404), we get a palindrome (577775).

It can be divided in two parts, 4043 and 71, that added together give a palindrome (4114).

The spelling of 404371 in words is "four hundred four thousand, three hundred seventy-one", and thus it is an iban number.