1083165440 has 72 divisors (see below), whose sum is σ = 2965189920. Its totient is φ = 371367936.

The previous prime is 1083165437. The next prime is 1083165463. The reversal of 1083165440 is 445613801.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 1083165397 and 1083165406.

It is an unprimeable number.

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, 51485 + ... + 69404.

Almost surely, 2^1083165440 is an apocalyptic number.

1083165440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1083165440 is an abundant number, since it is smaller than the sum of its proper divisors (1882024480).

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

1083165440 is an equidigital number, since it uses as much as digits as its factorization.

1083165440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120917 (or 120903 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1083165440 is about 32911.4788485720. The cubic root of 1083165440 is about 1026.9869655228.

The spelling of 1083165440 in words is "one billion, eighty-three million, one hundred sixty-five thousand, four hundred forty".