1083812990 has 16 divisors (see below), whose sum is σ = 2100930048. Its totient is φ = 400177056.

The previous prime is 1083812987. The next prime is 1083812993. The reversal of 1083812990 is 992183801.

It is an interprime number because it is at equal distance from previous prime (1083812987) and next prime (1083812993).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083812993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4168382 + ... + 4168641.

It is an arithmetic number, because the mean of its divisors is an integer number (131308128).

Almost surely, 2^1083812990 is an apocalyptic number.

1083812990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1083812990 is a deficient number, since it is larger than the sum of its proper divisors (1017117058).

1083812990 is a wasteful number, since it uses less digits than its factorization.

1083812990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8337043.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 1083812990 is about 32921.3151316894. The cubic root of 1083812990 is about 1027.1915796733.

The spelling of 1083812990 in words is "one billion, eighty-three million, eight hundred twelve thousand, nine hundred ninety".