240960721 has 2 divisors, whose sum is σ = 240960722. Its totient is φ = 240960720.

The previous prime is 240960701. The next prime is 240960751. The reversal of 240960721 is 127069042.

240960721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186732225 + 54228496 = 13665^2 + 7364^2 .

It is a cyclic number.

It is not a de Polignac number, because 240960721 - 2⁷ = 240960593 is a prime.

It is not a weakly prime, because it can be changed into another prime (240960701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120480360 + 120480361.

It is an arithmetic number, because the mean of its divisors is an integer number (120480361).

Almost surely, 2^240960721 is an apocalyptic number.

It is an amenable number.

240960721 is a deficient number, since it is larger than the sum of its proper divisors (1).

240960721 is an equidigital number, since it uses as much as digits as its factorization.

240960721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 240960721 is about 15522.9095533022. The cubic root of 240960721 is about 622.2746148355.

The spelling of 240960721 in words is "two hundred forty million, nine hundred sixty thousand, seven hundred twenty-one".