404204144 has 20 divisors (see below), whose sum is σ = 784350840. Its totient is φ = 201791040.

The previous prime is 404204137. The next prime is 404204153. The reversal of 404204144 is 441402404.

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 3 ways as a sum of consecutive naturals, for example, 8534 + ... + 29685.

It is an arithmetic number, because the mean of its divisors is an integer number (39217542).

Almost surely, 2^404204144 is an apocalyptic number.

It is an amenable number.

404204144 is a deficient number, since it is larger than the sum of its proper divisors (380146696).

404204144 is a wasteful number, since it uses less digits than its factorization.

404204144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38888 (or 38882 counting only the distinct ones).

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

The square root of 404204144 is about 20104.8288726863. The cubic root of 404204144 is about 739.3786749576.

Adding to 404204144 its reverse (441402404), we get a palindrome (845606548).

The spelling of 404204144 in words is "four hundred four million, two hundred four thousand, one hundred forty-four".