404334130040 has 32 divisors (see below), whose sum is σ = 909769959360. Its totient is φ = 161730422400.

The previous prime is 404334130007. The next prime is 404334130063. The reversal of 404334130040 is 40031433404.

It is a junction number, because it is equal to n+sod(n) for n = 404334129991 and 404334130009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3629570 + ... + 3739310.

It is an arithmetic number, because the mean of its divisors is an integer number (28430311230).

Almost surely, 2^404334130040 is an apocalyptic number.

404334130040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404334130040 is an abundant number, since it is smaller than the sum of its proper divisors (505435829320).

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

404334130040 is a wasteful number, since it uses less digits than its factorization.

404334130040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201863 (or 201859 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 404334130040 its reverse (40031433404), we get a palindrome (444365563444).

The spelling of 404334130040 in words is "four hundred four billion, three hundred thirty-four million, one hundred thirty thousand, forty".