2228040257 has 2 divisors, whose sum is σ = 2228040258. Its totient is φ = 2228040256.

The previous prime is 2228040233. The next prime is 2228040319. The reversal of 2228040257 is 7520408222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1330498576 + 897541681 = 36476^2 + 29959^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228040257 - 2¹⁴ = 2228023873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2228046257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114020128 + 1114020129.

It is an arithmetic number, because the mean of its divisors is an integer number (1114020129).

Almost surely, 2^2228040257 is an apocalyptic number.

It is an amenable number.

2228040257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228040257 is an equidigital number, since it uses as much as digits as its factorization.

2228040257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 2228040257 is about 47202.1213188560. The cubic root of 2228040257 is about 1306.0937297639.

Adding to 2228040257 its reverse (7520408222), we get a palindrome (9748448479).

The spelling of 2228040257 in words is "two billion, two hundred twenty-eight million, forty thousand, two hundred fifty-seven".