2170748216 has 192 divisors, whose sum is σ = 5340672000. Its totient is φ = 825552000.

The previous prime is 2170748191. The next prime is 2170748263. The reversal of 2170748216 is 6128470712.

It is a self number, because there is not a number n which added to its sum of digits gives 2170748216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14375741 + ... + 14375891.

It is an arithmetic number, because the mean of its divisors is an integer number (27816000).

Almost surely, 2^2170748216 is an apocalyptic number.

2170748216 is a gapful number since it is divisible by the number (26) 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 2170748216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2670336000).

2170748216 is an abundant number, since it is smaller than the sum of its proper divisors (3169923784).

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

2170748216 is a wasteful number, since it uses less digits than its factorization.

2170748216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 2170748216 is about 46591.2890570759. The cubic root of 2170748216 is about 1294.8013720194.

The spelling of 2170748216 in words is "two billion, one hundred seventy million, seven hundred forty-eight thousand, two hundred sixteen".