366120009 has 6 divisors (see below), whose sum is σ = 528840026. Its totient is φ = 244080000.

The previous prime is 366119993. The next prime is 366120011. The reversal of 366120009 is 900021663.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 328334400 + 37785609 = 18120^2 + 6147^2 .

It is not a de Polignac number, because 366120009 - 2⁴ = 366119993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (366120059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20339992 + ... + 20340009.

Almost surely, 2^366120009 is an apocalyptic number.

It is an amenable number.

366120009 is a deficient number, since it is larger than the sum of its proper divisors (162720017).

366120009 is a wasteful number, since it uses less digits than its factorization.

366120009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40680007 (or 40680004 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 366120009 is about 19134.2626981026. The cubic root of 366120009 is about 715.3871826718.

The spelling of 366120009 in words is "three hundred sixty-six million, one hundred twenty thousand, nine".