404340043332 has 144 divisors (see below), whose sum is σ = 996234861888. Its totient is φ = 127623724800.

The previous prime is 404340043301. The next prime is 404340043337. The reversal of 404340043332 is 233340043404.

It is a self number, because there is not a number n which added to its sum of digits gives 404340043332.

It is not an unprimeable number, because it can be changed into a prime (404340043337) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 310791082 + ... + 310792382.

It is an arithmetic number, because the mean of its divisors is an integer number (6918297652).

Almost surely, 2^404340043332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404340043332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (498117430944).

404340043332 is an abundant number, since it is smaller than the sum of its proper divisors (591894818556).

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

404340043332 is a wasteful number, since it uses less digits than its factorization.

404340043332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810 (or 1785 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 30.

Adding to 404340043332 its reverse (233340043404), we get a palindrome (637680086736).

The spelling of 404340043332 in words is "four hundred four billion, three hundred forty million, forty-three thousand, three hundred thirty-two".