387983642 has 8 divisors (see below), whose sum is σ = 607278816. Its totient is φ = 185557372.

The previous prime is 387983627. The next prime is 387983677. The reversal of 387983642 is 246389783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4217168 + ... + 4217259.

It is an arithmetic number, because the mean of its divisors is an integer number (75909852).

Almost surely, 2^387983642 is an apocalyptic number.

387983642 is a deficient number, since it is larger than the sum of its proper divisors (219295174).

387983642 is a wasteful number, since it uses less digits than its factorization.

387983642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8434452.

The product of its digits is 1741824, while the sum is 50.

The square root of 387983642 is about 19697.3003734014. The cubic root of 387983642 is about 729.3530528973.

The spelling of 387983642 in words is "three hundred eighty-seven million, nine hundred eighty-three thousand, six hundred forty-two".