1404443221020 has 288 divisors, whose sum is σ = 5188519784448. Its totient is φ = 300524944896.

The previous prime is 1404443221019. The next prime is 1404443221061. The reversal of 1404443221020 is 201223444041.

1404443221020 is a `hidden beast` number, since 1 + 4 + 0 + 4 + 443 + 2 + 210 + 2 + 0 = 666.

It is a super-2 number, since 2×1404443221020² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 846502 + ... + 1877618.

It is an arithmetic number, because the mean of its divisors is an integer number (18015693696).

Almost surely, 2^{1404443221020} is an apocalyptic number.

1404443221020 is a gapful number since it is divisible by the number (10) 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 1404443221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2594259892224).

1404443221020 is an abundant number, since it is smaller than the sum of its proper divisors (3784076563428).

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

1404443221020 is a wasteful number, since it uses less digits than its factorization.

1404443221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031209 (or 1031204 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 1404443221020 its reverse (201223444041), we get a palindrome (1605666665061).

The spelling of 1404443221020 in words is "one trillion, four hundred four billion, four hundred forty-three million, two hundred twenty-one thousand, twenty".