9660870440 has 32 divisors (see below), whose sum is σ = 23409033480. Its totient is φ = 3567090432.

The previous prime is 9660870431. The next prime is 9660870469. The reversal of 9660870440 is 440780669.

It can be written as a sum of positive squares in 4 ways, for example, as 2835136516 + 6825733924 = 53246^2 + 82618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9660870391 and 9660870400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9288779 + ... + 9289818.

Almost surely, 2^9660870440 is an apocalyptic number.

It is an amenable number.

9660870440 is an abundant number, since it is smaller than the sum of its proper divisors (13748163040).

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

9660870440 is a wasteful number, since it uses less digits than its factorization.

9660870440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18578621 (or 18578617 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 9660870440 is about 98289.7270318725. The cubic root of 9660870440 is about 2129.7996564122.

The spelling of 9660870440 in words is "nine billion, six hundred sixty million, eight hundred seventy thousand, four hundred forty".