404040042313 has 8 divisors (see below), whose sum is σ = 405841457480. Its totient is φ = 402238949760.

The previous prime is 404040042269. The next prime is 404040042323. The reversal of 404040042313 is 313240040404.

It can be written as a sum of positive squares in 4 ways, for example, as 158235292944 + 245804749369 = 397788^2 + 495787^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 404040042313 - 2¹³ = 404040034121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404040042323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2632381 + ... + 2781637.

It is an arithmetic number, because the mean of its divisors is an integer number (50730182185).

Almost surely, 2^404040042313 is an apocalyptic number.

It is an amenable number.

404040042313 is a deficient number, since it is larger than the sum of its proper divisors (1801415167).

404040042313 is a wasteful number, since it uses less digits than its factorization.

404040042313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161307.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 404040042313 its reverse (313240040404), we get a palindrome (717280082717).

The spelling of 404040042313 in words is "four hundred four billion, forty million, forty-two thousand, three hundred thirteen".