2402217281 has 2 divisors, whose sum is σ = 2402217282. Its totient is φ = 2402217280.

The previous prime is 2402217241. The next prime is 2402217289. The reversal of 2402217281 is 1827122042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2341688881 + 60528400 = 48391^2 + 7780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2402217281 is a prime.

It is a super-2 number, since 2×2402217281² = 11541295730270065922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2402217289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201108640 + 1201108641.

It is an arithmetic number, because the mean of its divisors is an integer number (1201108641).

Almost surely, 2^2402217281 is an apocalyptic number.

It is an amenable number.

2402217281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2402217281 is an equidigital number, since it uses as much as digits as its factorization.

2402217281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 2402217281 is about 49012.4196607350. The cubic root of 2402217281 is about 1339.2780846339.

The spelling of 2402217281 in words is "two billion, four hundred two million, two hundred seventeen thousand, two hundred eighty-one".