240302281 has 2 divisors, whose sum is σ = 240302282. Its totient is φ = 240302280.

The previous prime is 240302239. The next prime is 240302303. The reversal of 240302281 is 182203042.

240302281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (240302303) can be obtained adding 240302281 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131308681 + 108993600 = 11459^2 + 10440^2 .

It is a cyclic number.

It is not a de Polignac number, because 240302281 - 2¹¹ = 240300233 is a prime.

It is a super-2 number, since 2×240302281² = 115490372507605922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240303281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120151140 + 120151141.

It is an arithmetic number, because the mean of its divisors is an integer number (120151141).

Almost surely, 2^240302281 is an apocalyptic number.

It is an amenable number.

240302281 is a deficient number, since it is larger than the sum of its proper divisors (1).

240302281 is an equidigital number, since it uses as much as digits as its factorization.

240302281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 240302281 is about 15501.6863921317. The cubic root of 240302281 is about 621.7072965497.

The spelling of 240302281 in words is "two hundred forty million, three hundred two thousand, two hundred eighty-one".