404440022040 has 32 divisors (see below), whose sum is σ = 1213320066480. Its totient is φ = 107850672512.

The previous prime is 404440022029. The next prime is 404440022047. The reversal of 404440022040 is 40220044404.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 404440022040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404440022047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1685166639 + ... + 1685166878.

Almost surely, 2^404440022040 is an apocalyptic number.

404440022040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404440022040 is an abundant number, since it is smaller than the sum of its proper divisors (808880044440).

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

404440022040 is a wasteful number, since it uses less digits than its factorization.

404440022040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3370333531 (or 3370333527 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 404440022040 its reverse (40220044404), we get a palindrome (444660066444).

The spelling of 404440022040 in words is "four hundred four billion, four hundred forty million, twenty-two thousand, forty".