330399290 has 16 divisors (see below), whose sum is σ = 640466568. Its totient is φ = 121993536.

The previous prime is 330399287. The next prime is 330399299. The reversal of 330399290 is 92993033.

It can be written as a sum of positive squares in 4 ways, for example, as 282609721 + 47789569 = 16811^2 + 6913^2 .

It is not an unprimeable number, because it can be changed into a prime (330399299) 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 7 ways as a sum of consecutive naturals, for example, 1270637 + ... + 1270896.

Almost surely, 2^330399290 is an apocalyptic number.

330399290 is a deficient number, since it is larger than the sum of its proper divisors (310067278).

330399290 is a wasteful number, since it uses less digits than its factorization.

330399290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541553.

The product of its (nonzero) digits is 39366, while the sum is 38.

The square root of 330399290 is about 18176.8888977184. Note that the first 4 decimals coincide. The cubic root of 330399290 is about 691.3209240884.

The spelling of 330399290 in words is "three hundred thirty million, three hundred ninety-nine thousand, two hundred ninety".