1083445440 has 224 divisors, whose sum is σ = 4289048064. Its totient is φ = 225116160.

The previous prime is 1083445439. The next prime is 1083445463. The reversal of 1083445440 is 445443801.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66592 + ... + 81248.

It is an arithmetic number, because the mean of its divisors is an integer number (19147536).

Almost surely, 2^1083445440 is an apocalyptic number.

1083445440 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 1083445440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2144524032).

1083445440 is an abundant number, since it is smaller than the sum of its proper divisors (3205602624).

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

1083445440 is a wasteful number, since it uses less digits than its factorization.

1083445440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14695 (or 14685 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 1083445440 is about 32915.7324086826. The cubic root of 1083445440 is about 1027.0754504902.

The spelling of 1083445440 in words is "one billion, eighty-three million, four hundred forty-five thousand, four hundred forty".