1016990208 has 160 divisors (see below), whose sum is σ = 3242500800. Its totient is φ = 312864768.

The previous prime is 1016990203. The next prime is 1016990209. The reversal of 1016990208 is 8020996101.

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

It is not an unprimeable number, because it can be changed into a prime (1016990203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176883 + ... + 182541.

It is an arithmetic number, because the mean of its divisors is an integer number (20265630).

Almost surely, 2^1016990208 is an apocalyptic number.

1016990208 is a gapful number since it is divisible by the number (18) 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 1016990208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1621250400).

1016990208 is an abundant number, since it is smaller than the sum of its proper divisors (2225510592).

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

1016990208 is an equidigital number, since it uses as much as digits as its factorization.

1016990208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699 (or 5677 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 1016990208 is about 31890.2839121887. The cubic root of 1016990208 is about 1005.6316278978.

The spelling of 1016990208 in words is "one billion, sixteen million, nine hundred ninety thousand, two hundred eight".