1087680320 has 28 divisors (see below), whose sum is σ = 2590039524. Its totient is φ = 435072000.

The previous prime is 1087680317. The next prime is 1087680323. The reversal of 1087680320 is 230867801.

It is an interprime number because it is at equal distance from previous prime (1087680317) and next prime (1087680323).

It can be written as a sum of positive squares in 2 ways, for example, as 564917824 + 522762496 = 23768^2 + 22864^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1087680323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1699181 + ... + 1699820.

Almost surely, 2^1087680320 is an apocalyptic number.

1087680320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1087680320 is an abundant number, since it is smaller than the sum of its proper divisors (1502359204).

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

1087680320 is an equidigital number, since it uses as much as digits as its factorization.

1087680320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399018 (or 3399008 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 1087680320 is about 32979.9987871437. The cubic root of 1087680320 is about 1028.4118926581.

The spelling of 1087680320 in words is "one billion, eighty-seven million, six hundred eighty thousand, three hundred twenty".