240829609 has 2 divisors, whose sum is σ = 240829610. Its totient is φ = 240829608.

The previous prime is 240829591. The next prime is 240829621. The reversal of 240829609 is 906928042.

240829609 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., 208658025 + 32171584 = 14445^2 + 5672^2 .

It is a cyclic number.

It is not a de Polignac number, because 240829609 - 2⁵ = 240829577 is a prime.

It is not a weakly prime, because it can be changed into another prime (240829649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120414804 + 120414805.

It is an arithmetic number, because the mean of its divisors is an integer number (120414805).

Almost surely, 2^240829609 is an apocalyptic number.

It is an amenable number.

240829609 is a deficient number, since it is larger than the sum of its proper divisors (1).

240829609 is an equidigital number, since it uses as much as digits as its factorization.

240829609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 240829609 is about 15518.6858013171. The cubic root of 240829609 is about 622.1617299480.

The spelling of 240829609 in words is "two hundred forty million, eight hundred twenty-nine thousand, six hundred nine".