387949542228 has 48 divisors (see below), whose sum is σ = 1006164432000. Its totient is φ = 129269029824.

The previous prime is 387949542163. The next prime is 387949542229. The reversal of 387949542228 is 822245949783.

387949542228 is a `hidden beast` number, since 3 + 87 + 9 + 4 + 9 + 542 + 2 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387949542229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363408 + ... + 952871.

It is an arithmetic number, because the mean of its divisors is an integer number (20961759000).

Almost surely, 2^387949542228 is an apocalyptic number.

It is an amenable number.

387949542228 is an abundant number, since it is smaller than the sum of its proper divisors (618214889772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387949542228 is a wasteful number, since it uses less digits than its factorization.

387949542228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319021 (or 1319013 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 387949542228 in words is "three hundred eighty-seven billion, nine hundred forty-nine million, five hundred forty-two thousand, two hundred twenty-eight".