368242009 has 4 divisors (see below), whose sum is σ = 368594100. Its totient is φ = 367889920.

The previous prime is 368242001. The next prime is 368242031. The reversal of 368242009 is 900242863.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 322382025 + 45859984 = 17955^2 + 6772^2 .

It is a cyclic number.

It is not a de Polignac number, because 368242009 - 2³ = 368242001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (368242001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174472 + ... + 176569.

It is an arithmetic number, because the mean of its divisors is an integer number (92148525).

Almost surely, 2^368242009 is an apocalyptic number.

It is an amenable number.

368242009 is a deficient number, since it is larger than the sum of its proper divisors (352091).

368242009 is a wasteful number, since it uses less digits than its factorization.

368242009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352090.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 368242009 is about 19189.6328521418. The cubic root of 368242009 is about 716.7666285179.

The spelling of 368242009 in words is "three hundred sixty-eight million, two hundred forty-two thousand, nine".