2190970256 has 80 divisors (see below), whose sum is σ = 4589706240. Its totient is φ = 1010056320.

The previous prime is 2190970241. The next prime is 2190970289. The reversal of 2190970256 is 6520790912.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1790861 + ... + 1792083.

It is an arithmetic number, because the mean of its divisors is an integer number (57371328).

Almost surely, 2^2190970256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2190970256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2294853120).

2190970256 is an abundant number, since it is smaller than the sum of its proper divisors (2398735984).

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

2190970256 is a wasteful number, since it uses less digits than its factorization.

2190970256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 2190970256 is about 46807.8012301368. The cubic root of 2190970256 is about 1298.8096116947.

The spelling of 2190970256 in words is "two billion, one hundred ninety million, nine hundred seventy thousand, two hundred fifty-six".