404003340340 has 24 divisors (see below), whose sum is σ = 848454473160. Its totient is φ = 161592296448.

The previous prime is 404003340331. The next prime is 404003340347. The reversal of 404003340340 is 43043300404.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5877675556 + 398125664784 = 76666^2 + 630972^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404003340347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192517 + ... + 919276.

It is an arithmetic number, because the mean of its divisors is an integer number (35352269715).

Almost surely, 2^404003340340 is an apocalyptic number.

It is an amenable number.

404003340340 is an abundant number, since it is smaller than the sum of its proper divisors (444451132820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404003340340 is a wasteful number, since it uses less digits than its factorization.

404003340340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129971 (or 1129969 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 404003340340 its reverse (43043300404), we get a palindrome (447046640744).

The spelling of 404003340340 in words is "four hundred four billion, three million, three hundred forty thousand, three hundred forty".