1081587760 has 40 divisors (see below), whose sum is σ = 2743302096. Its totient is φ = 393304320.

The previous prime is 1081587757. The next prime is 1081587761. The reversal of 1081587760 is 677851801.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1081587761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613659 + ... + 615418.

Almost surely, 2^1081587760 is an apocalyptic number.

1081587760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1081587760 is an abundant number, since it is smaller than the sum of its proper divisors (1661714336).

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

1081587760 is a wasteful number, since it uses less digits than its factorization.

1081587760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229101 (or 1229095 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 43.

The square root of 1081587760 is about 32887.5015773470. The cubic root of 1081587760 is about 1026.4881054125.

The spelling of 1081587760 in words is "one billion, eighty-one million, five hundred eighty-seven thousand, seven hundred sixty".