2206745892 has 72 divisors (see below), whose sum is σ = 6043015160. Its totient is φ = 678974400.

The previous prime is 2206745837. The next prime is 2206745909. The reversal of 2206745892 is 2985476022.

2206745892 is a `hidden beast` number, since 2 + 2 + 0 + 67 + 4 + 589 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 258759396 + 1947986496 = 16086^2 + 44136^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65142 + ... + 93042.

Almost surely, 2^2206745892 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 2206745892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3021507580).

2206745892 is an abundant number, since it is smaller than the sum of its proper divisors (3836269268).

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

2206745892 is a wasteful number, since it uses less digits than its factorization.

2206745892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27950 (or 27919 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 2206745892 is about 46976.0140071505. The cubic root of 2206745892 is about 1301.9194312593.

The spelling of 2206745892 in words is "two billion, two hundred six million, seven hundred forty-five thousand, eight hundred ninety-two".