2106704208 has 160 divisors (see below), whose sum is σ = 6374806272. Its totient is φ = 587059200.

The previous prime is 2106704191. The next prime is 2106704221. The reversal of 2106704208 is 8024076012.

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, 5003838 + ... + 5004258.

Almost surely, 2^2106704208 is an apocalyptic number.

2106704208 is a gapful number since it is divisible by the number (28) 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 2106704208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3187403136).

2106704208 is an abundant number, since it is smaller than the sum of its proper divisors (4268102064).

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

2106704208 is a wasteful number, since it uses less digits than its factorization.

2106704208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2106704208 is about 45898.8475672320. The cubic root of 2106704208 is about 1281.9404585037.

The spelling of 2106704208 in words is "two billion, one hundred six million, seven hundred four thousand, two hundred eight".