4020242069 has 2 divisors, whose sum is σ = 4020242070. Its totient is φ = 4020242068.

The previous prime is 4020242041. The next prime is 4020242081. The reversal of 4020242069 is 9602420204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4014743044 + 5499025 = 63362^2 + 2345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4020242069 is a prime.

It is a super-2 number, since 2×4020242069² = 32324692586714801522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4020242969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010121034 + 2010121035.

It is an arithmetic number, because the mean of its divisors is an integer number (2010121035).

Almost surely, 2^4020242069 is an apocalyptic number.

It is an amenable number.

4020242069 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020242069 is an equidigital number, since it uses as much as digits as its factorization.

4020242069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 4020242069 is about 63405.3788648881. The cubic root of 4020242069 is about 1590.0742379271.

The spelling of 4020242069 in words is "four billion, twenty million, two hundred forty-two thousand, sixty-nine".