8218492 has 6 divisors (see below), whose sum is σ = 14382368. Its totient is φ = 4109244.

The previous prime is 8218489. The next prime is 8218499. The reversal of 8218492 is 2948128.

It is a super-2 number, since 2×8218492² = 135087221508128, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8218499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027308 + ... + 1027315.

Almost surely, 2^8218492 is an apocalyptic number.

It is an amenable number.

8218492 is a deficient number, since it is larger than the sum of its proper divisors (6163876).

8218492 is a wasteful number, since it uses less digits than its factorization.

8218492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054627 (or 2054625 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 8218492 is about 2866.7912376035. The cubic root of 8218492 is about 201.8044377287.

The spelling of 8218492 in words is "eight million, two hundred eighteen thousand, four hundred ninety-two".