2206256788 has 6 divisors (see below), whose sum is σ = 3860949386. Its totient is φ = 1103128392.

The previous prime is 2206256777. The next prime is 2206256837. The reversal of 2206256788 is 8876526022.

It can be written as a sum of positive squares in only one way, i.e., 1931426704 + 274830084 = 43948^2 + 16578^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275782095 + ... + 275782102.

Almost surely, 2^2206256788 is an apocalyptic number.

It is an amenable number.

2206256788 is a deficient number, since it is larger than the sum of its proper divisors (1654692598).

2206256788 is a wasteful number, since it uses less digits than its factorization.

2206256788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551564201 (or 551564199 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 2206256788 is about 46970.8078278413. The cubic root of 2206256788 is about 1301.8232381793.

The spelling of 2206256788 in words is "two billion, two hundred six million, two hundred fifty-six thousand, seven hundred eighty-eight".