388808345 has 8 divisors (see below), whose sum is σ = 466978176. Its totient is φ = 310774576.

The previous prime is 388808297. The next prime is 388808443. The reversal of 388808345 is 543808883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 388808345 - 2⁶ = 388808281 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 388808345.

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 7 ways as a sum of consecutive naturals, for example, 27617 + ... + 39246.

It is an arithmetic number, because the mean of its divisors is an integer number (58372272).

Almost surely, 2^388808345 is an apocalyptic number.

It is an amenable number.

388808345 is a deficient number, since it is larger than the sum of its proper divisors (78169831).

388808345 is a wasteful number, since it uses less digits than its factorization.

388808345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68031.

The product of its (nonzero) digits is 737280, while the sum is 47.

The square root of 388808345 is about 19718.2236776034. The cubic root of 388808345 is about 729.8694612396.

The spelling of 388808345 in words is "three hundred eighty-eight million, eight hundred eight thousand, three hundred forty-five".