1085850 has 72 divisors (see below), whose sum is σ = 3095040. Its totient is φ = 272160.

The previous prime is 1085827. The next prime is 1085857. The reversal of 1085850 is 585801.

1085850 = 80² + 81² + ... + 155².

It is not an unprimeable number, because it can be changed into a prime (1085857) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8487 + ... + 8613.

2^1085850 is an apocalyptic number.

1085850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1085850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1547520).

1085850 is an abundant number, since it is smaller than the sum of its proper divisors (2009190).

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

1085850 is a wasteful number, since it uses less digits than its factorization.

1085850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1085850 is about 1042.0412659775. The cubic root of 1085850 is about 102.7834707233.

The spelling of 1085850 in words is "one million, eighty-five thousand, eight hundred fifty".