1404423444424 has 256 divisors, whose sum is σ = 3711246336000. Its totient is φ = 483116325120.

The previous prime is 1404423444397. The next prime is 1404423444427. The reversal of 1404423444424 is 4244443244041.

It is a super-2 number, since 2×1404423444424² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1404423444427) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31104537 + ... + 31149655.

It is an arithmetic number, because the mean of its divisors is an integer number (14497056000).

Almost surely, 2^{1404423444424} is an apocalyptic number.

1404423444424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1404423444424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1855623168000).

1404423444424 is an abundant number, since it is smaller than the sum of its proper divisors (2306822891576).

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

1404423444424 is a wasteful number, since it uses less digits than its factorization.

1404423444424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45205 (or 45175 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 40.

Adding to 1404423444424 its reverse (4244443244041), we get a palindrome (5648866688465).

The spelling of 1404423444424 in words is "one trillion, four hundred four billion, four hundred twenty-three million, four hundred forty-four thousand, four hundred twenty-four".