2106943500 has 96 divisors (see below), whose sum is σ = 6151541760. Its totient is φ = 560376000.

The previous prime is 2106943493. The next prime is 2106943507. The reversal of 2106943500 is 53496012.

It is an interprime number because it is at equal distance from previous prime (2106943493) and next prime (2106943507).

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

It is not an unprimeable number, because it can be changed into a prime (2106943507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 644871 + ... + 648129.

It is an arithmetic number, because the mean of its divisors is an integer number (64078560).

Almost surely, 2^2106943500 is an apocalyptic number.

2106943500 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 2106943500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3075770880).

2106943500 is an abundant number, since it is smaller than the sum of its proper divisors (4044598260).

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

2106943500 is a wasteful number, since it uses less digits than its factorization.

2106943500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712 (or 3700 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 2106943500 is about 45901.4542253293. The cubic root of 2106943500 is about 1281.9889934746.

The spelling of 2106943500 in words is "two billion, one hundred six million, nine hundred forty-three thousand, five hundred".