404000088444 has 18 divisors (see below), whose sum is σ = 1021222445880. Its totient is φ = 134666696136.

The previous prime is 404000088439. The next prime is 404000088463. The reversal of 404000088444 is 444880000404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×404000088444² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 11222224679 = 404000088444 / (4 + 0 + 4 + 0 + 0 + 0 + 0 + 8 + 8 + 4 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 404000088399 and 404000088408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5611112304 + ... + 5611112375.

Almost surely, 2^404000088444 is an apocalyptic number.

It is an amenable number.

404000088444 is an abundant number, since it is smaller than the sum of its proper divisors (617222357436).

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

404000088444 is a wasteful number, since it uses less digits than its factorization.

404000088444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11222224689 (or 11222224684 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 36.

Adding to 404000088444 its reverse (444880000404), we get a palindrome (848880088848).

The spelling of 404000088444 in words is "four hundred four billion, eighty-eight thousand, four hundred forty-four".