18486306 has 20 divisors (see below), whose sum is σ = 41423382. Its totient is φ = 6162048.

The previous prime is 18486289. The next prime is 18486329. The reversal of 18486306 is 60368481.

It is a happy number.

18486306 is a `hidden beast` number, since 18 + 4 + 8 + 630 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18275625 + 210681 = 4275^2 + 459^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 56895 + ... + 57218.

Almost surely, 2^18486306 is an apocalyptic number.

18486306 is an abundant number, since it is smaller than the sum of its proper divisors (22937076).

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

18486306 is a wasteful number, since it uses less digits than its factorization.

18486306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114127 (or 114118 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 18486306 is about 4299.5704436606. The cubic root of 18486306 is about 264.4133504046.

The spelling of 18486306 in words is "eighteen million, four hundred eighty-six thousand, three hundred six".