1083394020 has 192 divisors, whose sum is σ = 3316432896. Its totient is φ = 263239680.

The previous prime is 1083393991. The next prime is 1083394033. The reversal of 1083394020 is 204933801.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5672125 + ... + 5672315.

It is an arithmetic number, because the mean of its divisors is an integer number (17273088).

Almost surely, 2^1083394020 is an apocalyptic number.

1083394020 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 1083394020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1658216448).

1083394020 is an abundant number, since it is smaller than the sum of its proper divisors (2233038876).

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

1083394020 is a wasteful number, since it uses less digits than its factorization.

1083394020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1083394020 is about 32914.9513139546. The cubic root of 1083394020 is about 1027.0592020008.

The spelling of 1083394020 in words is "one billion, eighty-three million, three hundred ninety-four thousand, twenty".