1420443240413 has 8 divisors (see below), whose sum is σ = 1478817622968. Its totient is φ = 1363120648704.

The previous prime is 1420443240389. The next prime is 1420443240473. The reversal of 1420443240413 is 3140423440241.

It can be written as a sum of positive squares in 4 ways, for example, as 320539410244 + 1099903830169 = 566162^2 + 1048763^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1420443240413 - 2²⁰ = 1420442191837 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420443240413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420443240473) 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, 262944956 + ... + 262950357.

It is an arithmetic number, because the mean of its divisors is an integer number (184852202871).

Almost surely, 2^{1420443240413} is an apocalyptic number.

It is an amenable number.

1420443240413 is a deficient number, since it is larger than the sum of its proper divisors (58374382555).

1420443240413 is an equidigital number, since it uses as much as digits as its factorization.

1420443240413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525895423.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1420443240413 its reverse (3140423440241), we get a palindrome (4560866680654).

The spelling of 1420443240413 in words is "one trillion, four hundred twenty billion, four hundred forty-three million, two hundred forty thousand, four hundred thirteen".