4062240821 has 2 divisors, whose sum is σ = 4062240822. Its totient is φ = 4062240820.

The previous prime is 4062240817. The next prime is 4062240827. The reversal of 4062240821 is 1280422604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3713074225 + 349166596 = 60935^2 + 18686^2 .

It is a cyclic number.

It is not a de Polignac number, because 4062240821 - 2² = 4062240817 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4062240827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2031120410 + 2031120411.

It is an arithmetic number, because the mean of its divisors is an integer number (2031120411).

Almost surely, 2^4062240821 is an apocalyptic number.

It is an amenable number.

4062240821 is a deficient number, since it is larger than the sum of its proper divisors (1).

4062240821 is an equidigital number, since it uses as much as digits as its factorization.

4062240821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 4062240821 is about 63735.7107201293. The cubic root of 4062240821 is about 1595.5921414583.

The spelling of 4062240821 in words is "four billion, sixty-two million, two hundred forty thousand, eight hundred twenty-one".