4221283949 has 2 divisors, whose sum is σ = 4221283950. Its totient is φ = 4221283948.

The previous prime is 4221283939. The next prime is 4221283961. The reversal of 4221283949 is 9493821224.

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., 4159347049 + 61936900 = 64493^2 + 7870^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221283949 - 2¹⁶ = 4221218413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221283939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110641974 + 2110641975.

It is an arithmetic number, because the mean of its divisors is an integer number (2110641975).

Almost surely, 2^4221283949 is an apocalyptic number.

It is an amenable number.

4221283949 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221283949 is an equidigital number, since it uses as much as digits as its factorization.

4221283949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 44.

The square root of 4221283949 is about 64971.4087041369. The cubic root of 4221283949 is about 1616.1494625600.

The spelling of 4221283949 in words is "four billion, two hundred twenty-one million, two hundred eighty-three thousand, nine hundred forty-nine".