2206256789 has 8 divisors (see below), whose sum is σ = 2424142560. Its totient is φ = 1991257200.

The previous prime is 2206256777. The next prime is 2206256837. The reversal of 2206256789 is 9876526022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2206256789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206256749) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 719942 + ... + 722999.

It is an arithmetic number, because the mean of its divisors is an integer number (303017820).

Almost surely, 2^2206256789 is an apocalyptic number.

It is an amenable number.

2206256789 is a deficient number, since it is larger than the sum of its proper divisors (217885771).

2206256789 is a wasteful number, since it uses less digits than its factorization.

2206256789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443091.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 2206256789 is about 46970.8078384862. The cubic root of 2206256789 is about 1301.8232383760.

The spelling of 2206256789 in words is "two billion, two hundred six million, two hundred fifty-six thousand, seven hundred eighty-nine".