18286136 has 16 divisors (see below), whose sum is σ = 37403640. Its totient is φ = 8311840.

The previous prime is 18286117. The next prime is 18286139. The reversal of 18286136 is 63168281.

It is a junction number, because it is equal to n+sod(n) for n = 18286096 and 18286105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18286139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103811 + ... + 103986.

Almost surely, 2^18286136 is an apocalyptic number.

It is an amenable number.

18286136 is an abundant number, since it is smaller than the sum of its proper divisors (19117504).

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

18286136 is a wasteful number, since it uses less digits than its factorization.

18286136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207814 (or 207810 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 18286136 is about 4276.2291800136. The cubic root of 18286136 is about 263.4555276866.

The spelling of 18286136 in words is "eighteen million, two hundred eighty-six thousand, one hundred thirty-six".