1087360020 has 144 divisors (see below), whose sum is σ = 3359275920. Its totient is φ = 284663808.

The previous prime is 1087360019. The next prime is 1087360051. The reversal of 1087360020 is 200637801.

It can be written as a sum of positive squares in 8 ways, for example, as 16499844 + 1070860176 = 4062^2 + 32724^2 .

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 3080164 + ... + 3080516.

It is an arithmetic number, because the mean of its divisors is an integer number (23328305).

Almost surely, 2^1087360020 is an apocalyptic number.

1087360020 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 1087360020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1679637960).

1087360020 is an abundant number, since it is smaller than the sum of its proper divisors (2271915900).

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

1087360020 is a wasteful number, since it uses less digits than its factorization.

1087360020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1087360020 is about 32975.1424560987. The cubic root of 1087360020 is about 1028.3109338677.

Adding to 1087360020 its reverse (200637801), we get a palindrome (1287997821).

The spelling of 1087360020 in words is "one billion, eighty-seven million, three hundred sixty thousand, twenty".