404240331343 has 4 divisors (see below), whose sum is σ = 404274667680. Its totient is φ = 404205995008.

The previous prime is 404240331277. The next prime is 404240331371. The reversal of 404240331343 is 343133042404.

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

It is a cyclic number.

It is not a de Polignac number, because 404240331343 - 2¹⁷ = 404240200271 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 (404243331343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17150503 + ... + 17174056.

It is an arithmetic number, because the mean of its divisors is an integer number (101068666920).

Almost surely, 2^404240331343 is an apocalyptic number.

404240331343 is a deficient number, since it is larger than the sum of its proper divisors (34336337).

404240331343 is a wasteful number, since it uses less digits than its factorization.

404240331343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34336336.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 404240331343 its reverse (343133042404), we get a palindrome (747373373747).

The spelling of 404240331343 in words is "four hundred four billion, two hundred forty million, three hundred thirty-one thousand, three hundred forty-three".