40040402204404 has 18 divisors (see below), whose sum is σ = 81510818773650. Its totient is φ = 17160172373232.

The previous prime is 40040402204347. The next prime is 40040402204419. The reversal of 40040402204404 is 40440220404004.

It can be written as a sum of positive squares in only one way, i.e., 40040394751504 + 7452900 = 6327748^2 + 2730^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102143882979 + ... + 102143883370.

Almost surely, 2^{40040402204404} is an apocalyptic number.

It is an amenable number.

40040402204404 is an abundant number, since it is smaller than the sum of its proper divisors (41470416569246).

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

40040402204404 is a wasteful number, since it uses less digits than its factorization.

40040402204404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204287766367 (or 204287766358 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40040402204404 its reverse (40440220404004), we get a palindrome (80480622608408).

The spelling of 40040402204404 in words is "forty trillion, forty billion, four hundred two million, two hundred four thousand, four hundred four".