2228273989 has 2 divisors, whose sum is σ = 2228273990. Its totient is φ = 2228273988.

The previous prime is 2228273981. The next prime is 2228274049. The reversal of 2228273989 is 9893728222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1994336964 + 233937025 = 44658^2 + 15295^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228273989 - 2³ = 2228273981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2228273981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114136994 + 1114136995.

It is an arithmetic number, because the mean of its divisors is an integer number (1114136995).

Almost surely, 2^2228273989 is an apocalyptic number.

It is an amenable number.

2228273989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228273989 is an equidigital number, since it uses as much as digits as its factorization.

2228273989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 2228273989 is about 47204.5971172300. The cubic root of 2228273989 is about 1306.1393999777.

The spelling of 2228273989 in words is "two billion, two hundred twenty-eight million, two hundred seventy-three thousand, nine hundred eighty-nine".