4220243477 has 2 divisors, whose sum is σ = 4220243478. Its totient is φ = 4220243476.

The previous prime is 4220243429. The next prime is 4220243537. The reversal of 4220243477 is 7743420224.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4204355281 + 15888196 = 64841^2 + 3986^2 .

It is a cyclic number.

It is not a de Polignac number, because 4220243477 - 2⁶ = 4220243413 is a prime.

It is a super-2 number, since 2×4220243477² = 35620910010322099058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4220243407) 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, 2110121738 + 2110121739.

It is an arithmetic number, because the mean of its divisors is an integer number (2110121739).

Almost surely, 2^4220243477 is an apocalyptic number.

It is an amenable number.

4220243477 is a deficient number, since it is larger than the sum of its proper divisors (1).

4220243477 is an equidigital number, since it uses as much as digits as its factorization.

4220243477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 35.

The square root of 4220243477 is about 64963.4010578264. The cubic root of 4220243477 is about 1616.0166675414.

The spelling of 4220243477 in words is "four billion, two hundred twenty million, two hundred forty-three thousand, four hundred seventy-seven".