1083696840 has 128 divisors (see below), whose sum is σ = 3619728000. Its totient is φ = 288393984.

The previous prime is 1083696839. The next prime is 1083696869. The reversal of 1083696840 is 486963801.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 860131 + ... + 861389.

It is an arithmetic number, because the mean of its divisors is an integer number (28279125).

Almost surely, 2^1083696840 is an apocalyptic number.

1083696840 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 1083696840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1809864000).

1083696840 is an abundant number, since it is smaller than the sum of its proper divisors (2536031160).

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

1083696840 is a wasteful number, since it uses less digits than its factorization.

1083696840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076 (or 2066 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1083696840 is about 32919.5510297452. The cubic root of 1083696840 is about 1027.1548843623.

The spelling of 1083696840 in words is "one billion, eighty-three million, six hundred ninety-six thousand, eight hundred forty".