2206210788 has 36 divisors (see below), whose sum is σ = 5582429580. Its totient is φ = 734662656.

The previous prime is 2206210739. The next prime is 2206210789. The reversal of 2206210788 is 8870126022.

It is a happy number.

2206210788 is a `hidden beast` number, since 2 + 20 + 621 + 0 + 7 + 8 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1106094564 + 1100116224 = 33258^2 + 33168^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2206210789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5956 + ... + 66692.

Almost surely, 2^2206210788 is an apocalyptic number.

It is an amenable number.

2206210788 is an abundant number, since it is smaller than the sum of its proper divisors (3376218792).

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

2206210788 is a wasteful number, since it uses less digits than its factorization.

2206210788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61756 (or 61751 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2206210788 is about 46970.3181594504. The cubic root of 2206210788 is about 1301.8141905342.

The spelling of 2206210788 in words is "two billion, two hundred six million, two hundred ten thousand, seven hundred eighty-eight".