240734281 has 2 divisors, whose sum is σ = 240734282. Its totient is φ = 240734280.

The previous prime is 240734269. The next prime is 240734303. The reversal of 240734281 is 182437042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169416256 + 71318025 = 13016^2 + 8445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240734281 is a prime.

It is a super-2 number, since 2×240734281² = 115905988097173922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (240734201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120367140 + 120367141.

It is an arithmetic number, because the mean of its divisors is an integer number (120367141).

Almost surely, 2^240734281 is an apocalyptic number.

It is an amenable number.

240734281 is a deficient number, since it is larger than the sum of its proper divisors (1).

240734281 is an equidigital number, since it uses as much as digits as its factorization.

240734281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 240734281 is about 15515.6141032187. The cubic root of 240734281 is about 622.0796286636.

The spelling of 240734281 in words is "two hundred forty million, seven hundred thirty-four thousand, two hundred eighty-one".