240432281 has 2 divisors, whose sum is σ = 240432282. Its totient is φ = 240432280.

The previous prime is 240432197. The next prime is 240432287. The reversal of 240432281 is 182234042.

240432281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129846025 + 110586256 = 11395^2 + 10516^2 .

It is a cyclic number.

It is not a de Polignac number, because 240432281 - 2¹⁸ = 240170137 is a prime.

It is a super-2 number, since 2×240432281² = 115615363493725922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 240432281.

It is not a weakly prime, because it can be changed into another prime (240432287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120216140 + 120216141.

It is an arithmetic number, because the mean of its divisors is an integer number (120216141).

Almost surely, 2^240432281 is an apocalyptic number.

It is an amenable number.

240432281 is a deficient number, since it is larger than the sum of its proper divisors (1).

240432281 is an equidigital number, since it uses as much as digits as its factorization.

240432281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 240432281 is about 15505.8789173655. The cubic root of 240432281 is about 621.8193878403.

The spelling of 240432281 in words is "two hundred forty million, four hundred thirty-two thousand, two hundred eighty-one".