330438666 has 16 divisors (see below), whose sum is σ = 668304000. Its totient is φ = 108908448.

The previous prime is 330438643. The next prime is 330438727. The reversal of 330438666 is 666834033.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308866 + ... + 309933.

It is an arithmetic number, because the mean of its divisors is an integer number (41769000).

Almost surely, 2^330438666 is an apocalyptic number.

330438666 is an abundant number, since it is smaller than the sum of its proper divisors (337865334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

330438666 is a wasteful number, since it uses less digits than its factorization.

330438666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618893.

The product of its (nonzero) digits is 186624, while the sum is 39.

The square root of 330438666 is about 18177.9719990982. The cubic root of 330438666 is about 691.3483861847.

The spelling of 330438666 in words is "three hundred thirty million, four hundred thirty-eight thousand, six hundred sixty-six".