330242409 has 18 divisors (see below), whose sum is σ = 554897850. Its totient is φ = 188709696.

The previous prime is 330242399. The next prime is 330242431. The reversal of 330242409 is 904242033.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 323892009 + 6350400 = 17997^2 + 2520^2 .

It is not a de Polignac number, because 330242409 - 2¹⁷ = 330111337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (330242009) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 373984 + ... + 374865.

Almost surely, 2^330242409 is an apocalyptic number.

It is an amenable number.

330242409 is a deficient number, since it is larger than the sum of its proper divisors (224655441).

330242409 is a wasteful number, since it uses less digits than its factorization.

330242409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748869 (or 748859 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 330242409 is about 18172.5729878848. The cubic root of 330242409 is about 691.2114885344.

The spelling of 330242409 in words is "three hundred thirty million, two hundred forty-two thousand, four hundred nine".