388066516 has 12 divisors (see below), whose sum is σ = 702534420. Its totient is φ = 187342400.

The previous prime is 388066499. The next prime is 388066537. The reversal of 388066516 is 615660883.

It can be written as a sum of positive squares in 2 ways, for example, as 79923600 + 308142916 = 8940^2 + 17554^2 .

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, 1672585 + ... + 1672816.

It is an arithmetic number, because the mean of its divisors is an integer number (58544535).

Almost surely, 2^388066516 is an apocalyptic number.

It is an amenable number.

388066516 is a deficient number, since it is larger than the sum of its proper divisors (314467904).

388066516 is a wasteful number, since it uses less digits than its factorization.

388066516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345434 (or 3345432 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 388066516 is about 19699.4039503737. The cubic root of 388066516 is about 729.4049795726.

The spelling of 388066516 in words is "three hundred eighty-eight million, sixty-six thousand, five hundred sixteen".