1085199028 has 12 divisors (see below), whose sum is σ = 1930231492. Its totient is φ = 533704320.

The previous prime is 1085199019. The next prime is 1085199047. The reversal of 1085199028 is 8209915801.

It can be written as a sum of positive squares in 2 ways, for example, as 118113424 + 967085604 = 10868^2 + 31098^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2223525 + ... + 2224012.

Almost surely, 2^1085199028 is an apocalyptic number.

It is an amenable number.

1085199028 is a deficient number, since it is larger than the sum of its proper divisors (845032464).

1085199028 is a wasteful number, since it uses less digits than its factorization.

1085199028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447602 (or 4447600 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 43.

The square root of 1085199028 is about 32942.3591747768. The cubic root of 1085199028 is about 1027.6292689838.

The spelling of 1085199028 in words is "one billion, eighty-five million, one hundred ninety-nine thousand, twenty-eight".