404943 has 16 divisors (see below), whose sum is σ = 673536. Its totient is φ = 210240.

The previous prime is 404941. The next prime is 404951. The reversal of 404943 is 349404.

It is not a de Polignac number, because 404943 - 2¹ = 404941 is a prime.

404943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646 + ... + 1107.

It is an arithmetic number, because the mean of its divisors is an integer number (42096).

2⁴⁰⁴⁹⁴³ is an apocalyptic number.

404943 is a deficient number, since it is larger than the sum of its proper divisors (268593).

404943 is a wasteful number, since it uses less digits than its factorization.

404943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 404943 is about 636.3513180626. The cubic root of 404943 is about 73.9828911019.

The spelling of 404943 in words is "four hundred four thousand, nine hundred forty-three".