384200066 has 8 divisors (see below), whose sum is σ = 577300620. Its totient is φ = 191767104.

The previous prime is 384200029. The next prime is 384200077. The reversal of 384200066 is 660002483.

384200066 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 239599441 + 144600625 = 15479^2 + 12025^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665570 + ... + 666146.

Almost surely, 2^384200066 is an apocalyptic number.

384200066 is a deficient number, since it is larger than the sum of its proper divisors (193100554).

384200066 is an frugal number, since it uses more digits than its factorization.

384200066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 384200066 is about 19601.0220651883. The cubic root of 384200066 is about 726.9744457893.

Multiplying 384200066 by its product of nonzero digits (6912), we get a cube (2655590856192 = 13848³).

The spelling of 384200066 in words is "three hundred eighty-four million, two hundred thousand, sixty-six".