1080861872 has 40 divisors (see below), whose sum is σ = 2165194752. Its totient is φ = 522158400.

The previous prime is 1080861863. The next prime is 1080861893. The reversal of 1080861872 is 2781680801.

It is a super-3 number, since 3×1080861872³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400913 + ... + 403599.

Almost surely, 2^1080861872 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 1080861872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1082597376).

1080861872 is an abundant number, since it is smaller than the sum of its proper divisors (1084332880).

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

1080861872 is a wasteful number, since it uses less digits than its factorization.

1080861872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537 (or 3531 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 41.

The square root of 1080861872 is about 32876.4638001109. The cubic root of 1080861872 is about 1026.2584177324.

The spelling of 1080861872 in words is "one billion, eighty million, eight hundred sixty-one thousand, eight hundred seventy-two".