8181486 has 20 divisors (see below), whose sum is σ = 18332952. Its totient is φ = 2727108.

The previous prime is 8181449. The next prime is 8181499. The reversal of 8181486 is 6841818.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8181486.

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, 25090 + ... + 25413.

Almost surely, 2^8181486 is an apocalyptic number.

8181486 is an abundant number, since it is smaller than the sum of its proper divisors (10151466).

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

8181486 is a wasteful number, since it uses less digits than its factorization.

8181486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50517 (or 50508 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 8181486 is about 2860.3297012757. The cubic root of 8181486 is about 201.5010888090.

It can be divided in two parts, 818 and 1486, that added together give a square (2304 = 48²).

The spelling of 8181486 in words is "eight million, one hundred eighty-one thousand, four hundred eighty-six".