404293 has 4 divisors (see below), whose sum is σ = 409248. Its totient is φ = 399340.

The previous prime is 404291. The next prime is 404309. The reversal of 404293 is 392404.

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 404293 - 2¹ = 404291 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 (404291) 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, 2353 + ... + 2518.

It is an arithmetic number, because the mean of its divisors is an integer number (102312).

2⁴⁰⁴²⁹³ is an apocalyptic number.

It is an amenable number.

404293 is a deficient number, since it is larger than the sum of its proper divisors (4955).

404293 is an equidigital number, since it uses as much as digits as its factorization.

404293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4954.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 404293 is about 635.8403887769. The cubic root of 404293 is about 73.9432850073.

Adding to 404293 its reverse (392404), we get a palindrome (796697).

The spelling of 404293 in words is "four hundred four thousand, two hundred ninety-three".