242595909 has 6 divisors (see below), whose sum is σ = 350416326. Its totient is φ = 161730600.

The previous prime is 242595883. The next prime is 242595911. The reversal of 242595909 is 909595242.

242595909 is a `hidden beast` number, since 2 + 4 + 2 + 59 + 590 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 229068225 + 13527684 = 15135^2 + 3678^2 .

It is not a de Polignac number, because 242595909 - 2⁵ = 242595877 is a prime.

It is a super-3 number, since 3×242595909³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242595919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13477542 + ... + 13477559.

It is an arithmetic number, because the mean of its divisors is an integer number (58402721).

Almost surely, 2^242595909 is an apocalyptic number.

It is an amenable number.

242595909 is a deficient number, since it is larger than the sum of its proper divisors (107820417).

242595909 is a wasteful number, since it uses less digits than its factorization.

242595909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26955107 (or 26955104 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 242595909 is about 15575.4906503776. The cubic root of 242595909 is about 623.6790524697.

The spelling of 242595909 in words is "two hundred forty-two million, five hundred ninety-five thousand, nine hundred nine".