1085191838 has 32 divisors (see below), whose sum is σ = 1758931200. Its totient is φ = 500255104.

The previous prime is 1085191777. The next prime is 1085191853. The reversal of 1085191838 is 8381915801.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695303 + ... + 696861.

It is an arithmetic number, because the mean of its divisors is an integer number (54966600).

Almost surely, 2^1085191838 is an apocalyptic number.

1085191838 is a deficient number, since it is larger than the sum of its proper divisors (673739362).

1085191838 is a wasteful number, since it uses less digits than its factorization.

1085191838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 69120, while the sum is 44.

The square root of 1085191838 is about 32942.2500445856. The cubic root of 1085191838 is about 1027.6269994552.

The spelling of 1085191838 in words is "one billion, eighty-five million, one hundred ninety-one thousand, eight hundred thirty-eight".