1402443404020 has 24 divisors (see below), whose sum is σ = 3046687396200. Its totient is φ = 541633314432.

The previous prime is 1402443404009. The next prime is 1402443404029. The reversal of 1402443404020 is 204043442041.

It can be written as a sum of positive squares in 4 ways, for example, as 603085815396 + 799357588624 = 776586^2 + 894068^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1402443404020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402443404029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1209002355 + ... + 1209003514.

It is an arithmetic number, because the mean of its divisors is an integer number (126945308175).

Almost surely, 2^{1402443404020} is an apocalyptic number.

1402443404020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1402443404020 is an abundant number, since it is smaller than the sum of its proper divisors (1644243992180).

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

1402443404020 is a wasteful number, since it uses less digits than its factorization.

1402443404020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418005907 (or 2418005905 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 1402443404020 its reverse (204043442041), we get a palindrome (1606486846061).

The spelling of 1402443404020 in words is "one trillion, four hundred two billion, four hundred forty-three million, four hundred four thousand, twenty".