404040401051504 has 20 divisors (see below), whose sum is σ = 894660888042864. Its totient is φ = 173160171879168.

The previous prime is 404040401051489. The next prime is 404040401051509. The reversal of 404040401051504 is 405150104040404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404040401051509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1803751790297 + ... + 1803751790520.

Almost surely, 2^{404040401051504} is an apocalyptic number.

It is an amenable number.

404040401051504 is an abundant number, since it is smaller than the sum of its proper divisors (490620486991360).

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

404040401051504 is a wasteful number, since it uses less digits than its factorization.

404040401051504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607503580832 (or 3607503580826 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 404040401051504 its reverse (405150104040404), we get a palindrome (809190505091908).

The spelling of 404040401051504 in words is "four hundred four trillion, forty billion, four hundred one million, fifty-one thousand, five hundred four".