4220323649 has 2 divisors, whose sum is σ = 4220323650. Its totient is φ = 4220323648.

The previous prime is 4220323621. The next prime is 4220323673. The reversal of 4220323649 is 9463230224.

4220323649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3196771600 + 1023552049 = 56540^2 + 31993^2 .

It is a cyclic number.

It is not a de Polignac number, because 4220323649 - 2¹⁶ = 4220258113 is a prime.

It is a super-2 number, since 2×4220323649² = 35622263404617350402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4220323609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110161824 + 2110161825.

It is an arithmetic number, because the mean of its divisors is an integer number (2110161825).

Almost surely, 2^4220323649 is an apocalyptic number.

It is an amenable number.

4220323649 is a deficient number, since it is larger than the sum of its proper divisors (1).

4220323649 is an equidigital number, since it uses as much as digits as its factorization.

4220323649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 4220323649 is about 64964.0181100276. The cubic root of 4220323649 is about 1616.0269006373.

The spelling of 4220323649 in words is "four billion, two hundred twenty million, three hundred twenty-three thousand, six hundred forty-nine".