1083844440 has 192 divisors, whose sum is σ = 4111810560. Its totient is φ = 242438400.

The previous prime is 1083844427. The next prime is 1083844451. The reversal of 1083844440 is 444483801.

1083844440 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 1083844395 and 1083844404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113865 + ... + 123015.

It is an arithmetic number, because the mean of its divisors is an integer number (21415680).

Almost surely, 2^1083844440 is an apocalyptic number.

1083844440 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 1083844440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2055905280).

1083844440 is an abundant number, since it is smaller than the sum of its proper divisors (3027966120).

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

1083844440 is a wasteful number, since it uses less digits than its factorization.

1083844440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9222 (or 9215 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 1083844440 is about 32921.7927822894. The cubic root of 1083844440 is about 1027.2015152320.

It can be divided in two parts, 10838 and 44440, that added together give a triangular number (55278 = T₃₃₂).

The spelling of 1083844440 in words is "one billion, eighty-three million, eight hundred forty-four thousand, four hundred forty".