20404302240029 has 2 divisors, whose sum is σ = 20404302240030. Its totient is φ = 20404302240028.

The previous prime is 20404302240017. The next prime is 20404302240079. The reversal of 20404302240029 is 92004220340402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20328393724804 + 75908515225 = 4508702^2 + 275515^2 .

It is a cyclic number.

It is not a de Polignac number, because 20404302240029 - 2⁴⁰ = 19304790612253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20404302239977 and 20404302240004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20404302240079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10202151120014 + 10202151120015.

It is an arithmetic number, because the mean of its divisors is an integer number (10202151120015).

Almost surely, 2^{20404302240029} is an apocalyptic number.

It is an amenable number.

20404302240029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20404302240029 is an equidigital number, since it uses as much as digits as its factorization.

20404302240029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 20404302240029 in words is "twenty trillion, four hundred four billion, three hundred two million, two hundred forty thousand, twenty-nine".