1806738168 has 32 divisors (see below), whose sum is σ = 4524498000. Its totient is φ = 601225728.

The previous prime is 1806738163. The next prime is 1806738169. The reversal of 1806738168 is 8618376081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806738161) 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, 49243 + ... + 77706.

Almost surely, 2^1806738168 is an apocalyptic number.

It is an amenable number.

1806738168 is an abundant number, since it is smaller than the sum of its proper divisors (2717759832).

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

1806738168 is a wasteful number, since it uses less digits than its factorization.

1806738168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127551 (or 127547 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 1806738168 is about 42505.7427649488. The cubic root of 1806738168 is about 1217.9563941561.

The spelling of 1806738168 in words is "one billion, eight hundred six million, seven hundred thirty-eight thousand, one hundred sixty-eight".