241905609 has 20 divisors (see below), whose sum is σ = 394218000. Its totient is φ = 146608920.

The previous prime is 241905607. The next prime is 241905647. The reversal of 241905609 is 906509142.

241905609 is a `hidden beast` number, since 2 + 4 + 1 + 90 + 560 + 9 = 666.

It is not a de Polignac number, because 241905609 - 2¹ = 241905607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (241905607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 134859 + ... + 136640.

It is an arithmetic number, because the mean of its divisors is an integer number (19710900).

Almost surely, 2^241905609 is an apocalyptic number.

It is an amenable number.

241905609 is a deficient number, since it is larger than the sum of its proper divisors (152312391).

241905609 is a wasteful number, since it uses less digits than its factorization.

241905609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271522 (or 271513 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 241905609 is about 15553.3150485676. The cubic root of 241905609 is about 623.0869366229.

The spelling of 241905609 in words is "two hundred forty-one million, nine hundred five thousand, six hundred nine".