1985571482 has 8 divisors (see below), whose sum is σ = 2985640500. Its totient is φ = 990357984.

The previous prime is 1985571481. The next prime is 1985571503. The reversal of 1985571482 is 2841755891.

It can be written as a sum of positive squares in 2 ways, for example, as 1975002481 + 10569001 = 44441^2 + 3251^2 .

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

It is a super-2 number, since 2×1985571482² = 7884988220263352648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1985571482.

It is not an unprimeable number, because it can be changed into a prime (1985571481) by changing a digit.

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, 1212857 + ... + 1214492.

Almost surely, 2^1985571482 is an apocalyptic number.

1985571482 is a deficient number, since it is larger than the sum of its proper divisors (1000069018).

1985571482 is a wasteful number, since it uses less digits than its factorization.

1985571482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427760.

The product of its digits is 806400, while the sum is 50.

The square root of 1985571482 is about 44559.7518170826. The cubic root of 1985571482 is about 1256.8839357097.

The spelling of 1985571482 in words is "one billion, nine hundred eighty-five million, five hundred seventy-one thousand, four hundred eighty-two".