404234013340 has 48 divisors (see below), whose sum is σ = 852877912320. Its totient is φ = 160934584320.

The previous prime is 404234013317. The next prime is 404234013343. The reversal of 404234013340 is 43310432404.

It is a junction number, because it is equal to n+sod(n) for n = 404234013299 and 404234013308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404234013343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38979676 + ... + 38990044.

It is an arithmetic number, because the mean of its divisors is an integer number (17768289840).

Almost surely, 2^404234013340 is an apocalyptic number.

It is an amenable number.

404234013340 is an abundant number, since it is smaller than the sum of its proper divisors (448643898980).

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

404234013340 is a wasteful number, since it uses less digits than its factorization.

404234013340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19342 (or 19340 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 404234013340 its reverse (43310432404), we get a palindrome (447544445744).

The spelling of 404234013340 in words is "four hundred four billion, two hundred thirty-four million, thirteen thousand, three hundred forty".