1085857120 has 48 divisors (see below), whose sum is σ = 2627922528. Its totient is φ = 423746560.

The previous prime is 1085857103. The next prime is 1085857127. The reversal of 1085857120 is 217585801.

It is a self number, because there is not a number n which added to its sum of digits gives 1085857120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085857127) by changing a digit.

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, 76204 + ... + 89323.

It is an arithmetic number, because the mean of its divisors is an integer number (54748386).

Almost surely, 2^1085857120 is an apocalyptic number.

1085857120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1085857120 is an abundant number, since it is smaller than the sum of its proper divisors (1542065408).

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

1085857120 is a wasteful number, since it uses less digits than its factorization.

1085857120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165583 (or 165575 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 37.

The square root of 1085857120 is about 32952.3461987155. The cubic root of 1085857120 is about 1027.8369537575.

The spelling of 1085857120 in words is "one billion, eighty-five million, eight hundred fifty-seven thousand, one hundred twenty".