1083249720 has 128 divisors (see below), whose sum is σ = 4126694400. Its totient is φ = 247598208.

The previous prime is 1083249719. The next prime is 1083249733. The reversal of 1083249720 is 279423801.

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

It is a congruent number.

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, 64084 + ... + 79203.

It is an arithmetic number, because the mean of its divisors is an integer number (32239800).

Almost surely, 2^1083249720 is an apocalyptic number.

1083249720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1083249720 is an abundant number, since it is smaller than the sum of its proper divisors (3043444680).

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

1083249720 is a wasteful number, since it uses less digits than its factorization.

1083249720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143314 (or 143304 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1083249720 is about 32912.7592279955. The cubic root of 1083249720 is about 1027.0136011020.

The spelling of 1083249720 in words is "one billion, eighty-three million, two hundred forty-nine thousand, seven hundred twenty".