8216256 has 28 divisors (see below), whose sum is σ = 21739352. Its totient is φ = 2738688.

The previous prime is 8216231. The next prime is 8216269. The reversal of 8216256 is 6526128.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21205 + ... + 21588.

Almost surely, 2^8216256 is an apocalyptic number.

It is an amenable number.

8216256 is an abundant number, since it is smaller than the sum of its proper divisors (13523096).

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

8216256 is a wasteful number, since it uses less digits than its factorization.

8216256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42808 (or 42798 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 8216256 is about 2866.4012280209. The cubic root of 8216256 is about 201.7861344662.

The spelling of 8216256 in words is "eight million, two hundred sixteen thousand, two hundred fifty-six".