404313243 has 8 divisors (see below), whose sum is σ = 539312208. Its totient is φ = 269428224.

The previous prime is 404313229. The next prime is 404313281. The reversal of 404313243 is 342313404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 404313243 - 2⁹ = 404312731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404313043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19830 + ... + 34667.

It is an arithmetic number, because the mean of its divisors is an integer number (67414026).

Almost surely, 2^404313243 is an apocalyptic number.

404313243 is a deficient number, since it is larger than the sum of its proper divisors (134998965).

404313243 is a wasteful number, since it uses less digits than its factorization.

404313243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56973.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 404313243 is about 20107.5419432610. The cubic root of 404313243 is about 739.4451910311.

Adding to 404313243 its reverse (342313404), we get a palindrome (746626647).

The spelling of 404313243 in words is "four hundred four million, three hundred thirteen thousand, two hundred forty-three".