387543428 has 12 divisors (see below), whose sum is σ = 678388032. Its totient is φ = 193718280.

The previous prime is 387543419. The next prime is 387543511. The reversal of 387543428 is 824345783.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6113 + ... + 28503.

It is an arithmetic number, because the mean of its divisors is an integer number (56532336).

Almost surely, 2^387543428 is an apocalyptic number.

It is an amenable number.

387543428 is a deficient number, since it is larger than the sum of its proper divisors (290844604).

387543428 is a wasteful number, since it uses less digits than its factorization.

387543428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26722 (or 26720 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 387543428 is about 19686.1227264284. The cubic root of 387543428 is about 729.0771023176.

The spelling of 387543428 in words is "three hundred eighty-seven million, five hundred forty-three thousand, four hundred twenty-eight".