1085995040 has 48 divisors (see below), whose sum is σ = 2763027288. Its totient is φ = 400982016.

The previous prime is 1085995033. The next prime is 1085995051. The reversal of 1085995040 is 405995801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 484176016 + 601819024 = 22004^2 + 24532^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258977 + ... + 263136.

Almost surely, 2^1085995040 is an apocalyptic number.

1085995040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1085995040 is an abundant number, since it is smaller than the sum of its proper divisors (1677032248).

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

1085995040 is a wasteful number, since it uses less digits than its factorization.

1085995040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522141 (or 522133 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 1085995040 is about 32954.4388512382. The cubic root of 1085995040 is about 1027.8804687739.

The spelling of 1085995040 in words is "one billion, eighty-five million, nine hundred ninety-five thousand, forty".