2440304002021 has 2 divisors, whose sum is σ = 2440304002022. Its totient is φ = 2440304002020.

The previous prime is 2440304002001. The next prime is 2440304002033. The reversal of 2440304002021 is 1202004030442.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2076224509921 + 364079492100 = 1440911^2 + 603390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2440304002021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2440304001983 and 2440304002001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2440304002001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220152001010 + 1220152001011.

It is an arithmetic number, because the mean of its divisors is an integer number (1220152001011).

Almost surely, 2^{2440304002021} is an apocalyptic number.

It is an amenable number.

2440304002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2440304002021 is an equidigital number, since it uses as much as digits as its factorization.

2440304002021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 2440304002021 its reverse (1202004030442), we get a palindrome (3642308032463).

The spelling of 2440304002021 in words is "two trillion, four hundred forty billion, three hundred four million, two thousand, twenty-one".