1985008948 has 12 divisors (see below), whose sum is σ = 3740978500. Its totient is φ = 916157952.

The previous prime is 1985008937. The next prime is 1985008981. The reversal of 1985008948 is 8498005891.

It can be written as a sum of positive squares in 2 ways, for example, as 251285904 + 1733723044 = 15852^2 + 41638^2 .

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 38173249 = 1985008948 / (1 + 9 + 8 + 5 + 0 + 0 + 8 + 9 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 1985008895 and 1985008904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19086573 + ... + 19086676.

Almost surely, 2^1985008948 is an apocalyptic number.

It is an amenable number.

1985008948 is a deficient number, since it is larger than the sum of its proper divisors (1755969552).

1985008948 is a wasteful number, since it uses less digits than its factorization.

1985008948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38173266 (or 38173264 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 52.

The square root of 1985008948 is about 44553.4392387389. The cubic root of 1985008948 is about 1256.7652282015.

The spelling of 1985008948 in words is "one billion, nine hundred eighty-five million, eight thousand, nine hundred forty-eight".