2206206738 has 18 divisors (see below), whose sum is σ = 4780546407. Its totient is φ = 735335820.

The previous prime is 2206206727. The next prime is 2206206757. The reversal of 2206206738 is 8376026022.

2206206738 is a `hidden beast` number, since 2 + 20 + 620 + 6 + 7 + 3 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1103103369 + 1103103369 = 33213^2 + 33213^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=33213.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 193743 + ... + 204813.

Almost surely, 2^2206206738 is an apocalyptic number.

2206206738 is an abundant number, since it is smaller than the sum of its proper divisors (2574339669).

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

2206206738 is an frugal number, since it uses more digits than its factorization.

2206206738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22150 (or 11076 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 2206206738 is about 46970.2750470976. The cubic root of 2206206738 is about 1301.8133939421.

The spelling of 2206206738 in words is "two billion, two hundred six million, two hundred six thousand, seven hundred thirty-eight".