1985746208 has 48 divisors (see below), whose sum is σ = 3950765280. Its totient is φ = 982425600.

The previous prime is 1985746163. The next prime is 1985746211. The reversal of 1985746208 is 8026475891.

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 7 ways as a sum of consecutive naturals, for example, 2686703 + ... + 2687441.

It is an arithmetic number, because the mean of its divisors is an integer number (82307610).

Almost surely, 2^1985746208 is an apocalyptic number.

It is an amenable number.

1985746208 is a deficient number, since it is larger than the sum of its proper divisors (1965019072).

1985746208 is a wasteful number, since it uses less digits than its factorization.

1985746208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521 (or 1513 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 1985746208 is about 44561.7123548905. The cubic root of 1985746208 is about 1256.9208023185.

The spelling of 1985746208 in words is "one billion, nine hundred eighty-five million, seven hundred forty-six thousand, two hundred eight".