404024144 has 20 divisors (see below), whose sum is σ = 785693760. Its totient is φ = 201264480.

The previous prime is 404024129. The next prime is 404024149. The reversal of 404024144 is 441420404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404024149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42254 + ... + 50925.

It is an arithmetic number, because the mean of its divisors is an integer number (39284688).

Almost surely, 2^404024144 is an apocalyptic number.

It is an amenable number.

404024144 is a deficient number, since it is larger than the sum of its proper divisors (381669616).

404024144 is a wasteful number, since it uses less digits than its factorization.

404024144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93458 (or 93452 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 404024144 is about 20100.3518377167. The cubic root of 404024144 is about 739.2689054068.

Adding to 404024144 its reverse (441420404), we get a palindrome (845444548).

The spelling of 404024144 in words is "four hundred four million, twenty-four thousand, one hundred forty-four".