388284066 has 24 divisors (see below), whose sum is σ = 860848560. Its totient is φ = 126417816.

The previous prime is 388284059. The next prime is 388284067. The reversal of 388284066 is 660482883.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (388284067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250056 + ... + 251603.

It is an arithmetic number, because the mean of its divisors is an integer number (35868690).

Almost surely, 2^388284066 is an apocalyptic number.

388284066 is an abundant number, since it is smaller than the sum of its proper divisors (472564494).

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

388284066 is a wasteful number, since it uses less digits than its factorization.

388284066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501710 (or 501707 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 388284066 is about 19704.9249173906. The cubic root of 388284066 is about 729.5412555318.

The spelling of 388284066 in words is "three hundred eighty-eight million, two hundred eighty-four thousand, sixty-six".