1085040984 has 64 divisors (see below), whose sum is σ = 2821363200. Its totient is φ = 347428224.

The previous prime is 1085040967. The next prime is 1085041007. The reversal of 1085040984 is 4890405801.

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, 62419 + ... + 77885.

It is an arithmetic number, because the mean of its divisors is an integer number (44083800).

Almost surely, 2^1085040984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1085040984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410681600).

1085040984 is an abundant number, since it is smaller than the sum of its proper divisors (1736322216).

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

1085040984 is a wasteful number, since it uses less digits than its factorization.

1085040984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15592 (or 15588 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 1085040984 is about 32939.9602914150. The cubic root of 1085040984 is about 1027.5793799709.

The spelling of 1085040984 in words is "one billion, eighty-five million, forty thousand, nine hundred eighty-four".