387974319240 has 128 divisors (see below), whose sum is σ = 1167025305600. Its totient is φ = 103184444160.

The previous prime is 387974319199. The next prime is 387974319301. The reversal of 387974319240 is 42913479783.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91436559 + ... + 91440801.

It is an arithmetic number, because the mean of its divisors is an integer number (9117385200).

Almost surely, 2^387974319240 is an apocalyptic number.

387974319240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

387974319240 is an abundant number, since it is smaller than the sum of its proper divisors (779050986360).

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

387974319240 is a wasteful number, since it uses less digits than its factorization.

387974319240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6107 (or 6103 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 57.

It can be divided in two parts, 3879743 and 19240, that added together give a palindrome (3898983).

The spelling of 387974319240 in words is "three hundred eighty-seven billion, nine hundred seventy-four million, three hundred nineteen thousand, two hundred forty".