388016387 has 6 divisors (see below), whose sum is σ = 426497484. Its totient is φ = 352742060.

The previous prime is 388016357. The next prime is 388016399. The reversal of 388016387 is 783610883.

It is not a de Polignac number, because 388016387 - 2⁶ = 388016323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388016357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1603253 + ... + 1603494.

It is an arithmetic number, because the mean of its divisors is an integer number (71082914).

Almost surely, 2^388016387 is an apocalyptic number.

388016387 is a deficient number, since it is larger than the sum of its proper divisors (38481097).

388016387 is a wasteful number, since it uses less digits than its factorization.

388016387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3206769 (or 3206758 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 388016387 is about 19698.1315611405. The cubic root of 388016387 is about 729.3735709392.

The spelling of 388016387 in words is "three hundred eighty-eight million, sixteen thousand, three hundred eighty-seven".