1081580886 has 24 divisors (see below), whose sum is σ = 2419020864. Its totient is φ = 348896880.

The previous prime is 1081580881. The next prime is 1081580923. The reversal of 1081580886 is 6880851801.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081580881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 968601 + ... + 969716.

It is an arithmetic number, because the mean of its divisors is an integer number (100792536).

Almost surely, 2^1081580886 is an apocalyptic number.

1081580886 is an abundant number, since it is smaller than the sum of its proper divisors (1337439978).

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

1081580886 is a wasteful number, since it uses less digits than its factorization.

1081580886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938356 (or 1938353 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 45.

The square root of 1081580886 is about 32887.3970693942. The cubic root of 1081580886 is about 1026.4859308027.

The spelling of 1081580886 in words is "one billion, eighty-one million, five hundred eighty thousand, eight hundred eighty-six".