2206806406 has 16 divisors (see below), whose sum is σ = 3784336416. Its totient is φ = 945464256.

The previous prime is 2206806401. The next prime is 2206806409. The reversal of 2206806406 is 6046086022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206806401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21400 + ... + 69796.

It is an arithmetic number, because the mean of its divisors is an integer number (236521026).

Almost surely, 2^2206806406 is an apocalyptic number.

2206806406 is a deficient number, since it is larger than the sum of its proper divisors (1577530010).

2206806406 is a wasteful number, since it uses less digits than its factorization.

2206806406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51663.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 2206806406 is about 46976.6580973998. The cubic root of 2206806406 is about 1301.9313316828.

The spelling of 2206806406 in words is "two billion, two hundred six million, eight hundred six thousand, four hundred six".