1087796480 has 72 divisors (see below), whose sum is σ = 2622693192. Its totient is φ = 432267264.

The previous prime is 1087796449. The next prime is 1087796483. The reversal of 1087796480 is 846977801.

It can be written as a sum of positive squares in 4 ways, for example, as 4596736 + 1083199744 = 2144^2 + 32912^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087796483) by changing a digit.

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, 198254 + ... + 203666.

Almost surely, 2^1087796480 is an apocalyptic number.

1087796480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1087796480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1311346596).

1087796480 is an abundant number, since it is smaller than the sum of its proper divisors (1534896712).

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

1087796480 is an equidigital number, since it uses as much as digits as its factorization.

1087796480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5591 (or 5577 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 1087796480 is about 32981.7598075057. The cubic root of 1087796480 is about 1028.4485014762.

The spelling of 1087796480 in words is "one billion, eighty-seven million, seven hundred ninety-six thousand, four hundred eighty".