40002420413 has 2 divisors, whose sum is σ = 40002420414. Its totient is φ = 40002420412.

The previous prime is 40002420407. The next prime is 40002420533. The reversal of 40002420413 is 31402420004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31321212484 + 8681207929 = 176978^2 + 93173^2 .

It is a cyclic number.

It is not a de Polignac number, because 40002420413 - 2¹² = 40002416317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40002420313) 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, 20001210206 + 20001210207.

It is an arithmetic number, because the mean of its divisors is an integer number (20001210207).

Almost surely, 2^40002420413 is an apocalyptic number.

It is an amenable number.

40002420413 is a deficient number, since it is larger than the sum of its proper divisors (1).

40002420413 is an equidigital number, since it uses as much as digits as its factorization.

40002420413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40002420413 its reverse (31402420004), we get a palindrome (71404840417).

The spelling of 40002420413 in words is "forty billion, two million, four hundred twenty thousand, four hundred thirteen".