384009966 has 12 divisors (see below), whose sum is σ = 832021632. Its totient is φ = 128003316.

The previous prime is 384009959. The next prime is 384010019. The reversal of 384009966 is 669900483.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10666926 + ... + 10666961.

It is an arithmetic number, because the mean of its divisors is an integer number (69335136).

Almost surely, 2^384009966 is an apocalyptic number.

384009966 is an abundant number, since it is smaller than the sum of its proper divisors (448011666).

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

384009966 is a wasteful number, since it uses less digits than its factorization.

384009966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21333895 (or 21333892 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 384009966 is about 19596.1722282695. The cubic root of 384009966 is about 726.8545250728.

The spelling of 384009966 in words is "three hundred eighty-four million, nine thousand, nine hundred sixty-six".