1080775840 has 24 divisors (see below), whose sum is σ = 2553333300. Its totient is φ = 432310272.

The previous prime is 1080775831. The next prime is 1080775849. The reversal of 1080775840 is 485770801.

It is an interprime number because it is at equal distance from previous prime (1080775831) and next prime (1080775849).

It can be written as a sum of positive squares in 2 ways, for example, as 895924624 + 184851216 = 29932^2 + 13596^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1080775793 and 1080775802.

It is not an unprimeable number, because it can be changed into a prime (1080775849) 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 3 ways as a sum of consecutive naturals, for example, 3377265 + ... + 3377584.

Almost surely, 2^1080775840 is an apocalyptic number.

1080775840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1080775840 is an abundant number, since it is smaller than the sum of its proper divisors (1472557460).

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

1080775840 is an equidigital number, since it uses as much as digits as its factorization.

1080775840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754864 (or 6754856 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 1080775840 is about 32875.1553608496. The cubic root of 1080775840 is about 1026.2311884108.

The spelling of 1080775840 in words is "one billion, eighty million, seven hundred seventy-five thousand, eight hundred forty".