404041144 has 24 divisors (see below), whose sum is σ = 820337760. Its totient is φ = 186479904.

The previous prime is 404041123. The next prime is 404041153. The reversal of 404041144 is 441140404.

It is a happy number.

It is a super-3 number, since 3×404041144³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 148072 + ... + 150775.

It is an arithmetic number, because the mean of its divisors is an integer number (34180740).

Almost surely, 2^404041144 is an apocalyptic number.

It is an amenable number.

404041144 is an abundant number, since it is smaller than the sum of its proper divisors (416296616).

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

404041144 is a wasteful number, since it uses less digits than its factorization.

404041144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298879 (or 298862 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 404041144 is about 20100.7747114384. The cubic root of 404041144 is about 739.2792739251.

Adding to 404041144 its reverse (441140404), we get a palindrome (845181548).

The spelling of 404041144 in words is "four hundred four million, forty-one thousand, one hundred forty-four".