404545311144 has 64 divisors (see below), whose sum is σ = 1210178289600. Its totient is φ = 124475479488.

The previous prime is 404545311097. The next prime is 404545311161. The reversal of 404545311144 is 441113545404.

404545311144 is a `hidden beast` number, since 4 + 0 + 4 + 5 + 4 + 531 + 114 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 404545311099 and 404545311108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72031614 + ... + 72037229.

It is an arithmetic number, because the mean of its divisors is an integer number (18909035775).

Almost surely, 2^404545311144 is an apocalyptic number.

It is an amenable number.

404545311144 is an abundant number, since it is smaller than the sum of its proper divisors (805632978456).

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

404545311144 is a wasteful number, since it uses less digits than its factorization.

404545311144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144068871 (or 144068861 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 404545311144 its reverse (441113545404), we get a palindrome (845658856548).

The spelling of 404545311144 in words is "four hundred four billion, five hundred forty-five million, three hundred eleven thousand, one hundred forty-four".