1085449866 has 16 divisors (see below), whose sum is σ = 2217089664. Its totient is φ = 354118304.

The previous prime is 1085449861. The next prime is 1085449877. The reversal of 1085449866 is 6689445801.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1085449861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1924275 + ... + 1924838.

It is an arithmetic number, because the mean of its divisors is an integer number (138568104).

Almost surely, 2^1085449866 is an apocalyptic number.

1085449866 is an abundant number, since it is smaller than the sum of its proper divisors (1131639798).

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

1085449866 is a wasteful number, since it uses less digits than its factorization.

1085449866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849165.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 1085449866 is about 32946.1661806044. The cubic root of 1085449866 is about 1027.7084399027.

The spelling of 1085449866 in words is "one billion, eighty-five million, four hundred forty-nine thousand, eight hundred sixty-six".