404421502144244 has 48 divisors (see below), whose sum is σ = 807528050638848. Its totient is φ = 175564198061568.

The previous prime is 404421502144243. The next prime is 404421502144259. The reversal of 404421502144244 is 442441205124404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404421502144243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144591284 + ... + 147361739.

It is an arithmetic number, because the mean of its divisors is an integer number (16823501054976).

Almost surely, 2^{404421502144244} is an apocalyptic number.

It is an amenable number.

404421502144244 is a deficient number, since it is larger than the sum of its proper divisors (403106548494604).

404421502144244 is a wasteful number, since it uses less digits than its factorization.

404421502144244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291954624 (or 291954622 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 41.

Adding to 404421502144244 its reverse (442441205124404), we get a palindrome (846862707268648).

The spelling of 404421502144244 in words is "four hundred four trillion, four hundred twenty-one billion, five hundred two million, one hundred forty-four thousand, two hundred forty-four".