1085724660 has 96 divisors (see below), whose sum is σ = 3210762240. Its totient is φ = 273572992.

The previous prime is 1085724643. The next prime is 1085724671. The reversal of 1085724660 is 664275801.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 109801 + ... + 119279.

It is an arithmetic number, because the mean of its divisors is an integer number (33445440).

Almost surely, 2^1085724660 is an apocalyptic number.

1085724660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1085724660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1605381120).

1085724660 is an abundant number, since it is smaller than the sum of its proper divisors (2125037580).

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

1085724660 is a wasteful number, since it uses less digits than its factorization.

1085724660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9597 (or 9595 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1085724660 is about 32950.3362653555. The cubic root of 1085724660 is about 1027.7951579519.

The spelling of 1085724660 in words is "one billion, eighty-five million, seven hundred twenty-four thousand, six hundred sixty".