2008989620 has 144 divisors (see below), whose sum is σ = 5019356160. Its totient is φ = 672291840.

The previous prime is 2008989611. The next prime is 2008989623. The reversal of 2008989620 is 269898002.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2008989623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1933061 + ... + 1934099.

It is an arithmetic number, because the mean of its divisors is an integer number (34856640).

Almost surely, 2^2008989620 is an apocalyptic number.

2008989620 is a gapful number since it is divisible by the number (20) 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 2008989620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2509678080).

2008989620 is an abundant number, since it is smaller than the sum of its proper divisors (3010366540).

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

2008989620 is a wasteful number, since it uses less digits than its factorization.

2008989620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134 (or 1121 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 2008989620 is about 44821.7538701912. The cubic root of 2008989620 is about 1261.8059305606.

The spelling of 2008989620 in words is "two billion, eight million, nine hundred eighty-nine thousand, six hundred twenty".