404023415444244 has 72 divisors (see below), whose sum is σ = 1025696331714600. Its totient is φ = 134092320279552.

The previous prime is 404023415444227. The next prime is 404023415444281. The reversal of 404023415444244 is 442444514320404.

404023415444244 is a `hidden beast` number, since 4 + 0 + 4 + 0 + 23 + 4 + 1 + 544 + 42 + 44 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25401479040144 + 378621936404100 = 5039988^2 + 19458210^2 .

It is a super-2 number, since 2×404023415444244² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 404023415444244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276486294 + ... + 277943730.

It is an arithmetic number, because the mean of its divisors is an integer number (14245782384925).

Almost surely, 2^{404023415444244} is an apocalyptic number.

It is an amenable number.

404023415444244 is an abundant number, since it is smaller than the sum of its proper divisors (621672916270356).

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

404023415444244 is a wasteful number, since it uses less digits than its factorization.

404023415444244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490729 (or 1490724 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 45.

Adding to 404023415444244 its reverse (442444514320404), we get a palindrome (846467929764648).

The spelling of 404023415444244 in words is "four hundred four trillion, twenty-three billion, four hundred fifteen million, four hundred forty-four thousand, two hundred forty-four".