974387138 has 8 divisors (see below), whose sum is σ = 1495571088. Its totient is φ = 475863444.

The previous prime is 974387123. The next prime is 974387143. The reversal of 974387138 is 831783479.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5664956 + ... + 5665127.

It is an arithmetic number, because the mean of its divisors is an integer number (186946386).

Almost surely, 2^974387138 is an apocalyptic number.

974387138 is a deficient number, since it is larger than the sum of its proper divisors (521183950).

974387138 is a wasteful number, since it uses less digits than its factorization.

974387138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11330128.

The product of its digits is 1016064, while the sum is 50.

The square root of 974387138 is about 31215.1748032908. The cubic root of 974387138 is about 991.3884331246.

The spelling of 974387138 in words is "nine hundred seventy-four million, three hundred eighty-seven thousand, one hundred thirty-eight".