388840310345 has 16 divisors (see below), whose sum is σ = 477771995712. Its totient is φ = 303639295680.

The previous prime is 388840310323. The next prime is 388840310359. The reversal of 388840310345 is 543013048883.

It is not a de Polignac number, because 388840310345 - 2¹² = 388840306249 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 388840310345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261482 + ... + 919811.

It is an arithmetic number, because the mean of its divisors is an integer number (29860749732).

Almost surely, 2^388840310345 is an apocalyptic number.

It is an amenable number.

388840310345 is a deficient number, since it is larger than the sum of its proper divisors (88931685367).

388840310345 is a wasteful number, since it uses less digits than its factorization.

388840310345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182872.

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 388840310345 in words is "three hundred eighty-eight billion, eight hundred forty million, three hundred ten thousand, three hundred forty-five".