1080065808 has 30 divisors (see below), whose sum is σ = 3022684574. Its totient is φ = 360021888.

The previous prime is 1080065807. The next prime is 1080065813. The reversal of 1080065808 is 8085600801.

It can be written as a sum of positive squares in only one way, i.e., 900720144 + 179345664 = 30012^2 + 13392^2 .

It is a super-2 number, since 2×1080065808² = 2333084299221385728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1080065807) 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 5 ways as a sum of consecutive naturals, for example, 3750085 + ... + 3750372.

Almost surely, 2^1080065808 is an apocalyptic number.

1080065808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1080065808 is an abundant number, since it is smaller than the sum of its proper divisors (1942618766).

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

1080065808 is a wasteful number, since it uses less digits than its factorization.

1080065808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500471 (or 7500462 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 1080065808 is about 32864.3546718934. The cubic root of 1080065808 is about 1026.0064064896.

The spelling of 1080065808 in words is "one billion, eighty million, sixty-five thousand, eight hundred eight".