387888538 has 16 divisors (see below), whose sum is σ = 607692960. Its totient is φ = 185502096.

The previous prime is 387888517. The next prime is 387888551. The reversal of 387888538 is 835888783.

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, 40056 + ... + 48787.

It is an arithmetic number, because the mean of its divisors is an integer number (37980810).

Almost surely, 2^387888538 is an apocalyptic number.

387888538 is a deficient number, since it is larger than the sum of its proper divisors (219804422).

387888538 is a wasteful number, since it uses less digits than its factorization.

387888538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88941.

The product of its digits is 10321920, while the sum is 58.

The square root of 387888538 is about 19694.8860875101. The cubic root of 387888538 is about 729.2934541122.

It can be divided in two parts, 3878 and 88538, that added together give a square (92416 = 304²).

The spelling of 387888538 in words is "three hundred eighty-seven million, eight hundred eighty-eight thousand, five hundred thirty-eight".