7816226 has 16 divisors (see below), whose sum is σ = 13543200. Its totient is φ = 3343680.

The previous prime is 7816219. The next prime is 7816253. The reversal of 7816226 is 6226187.

It is a super-2 number, since 2×7816226² = 122186777766152, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a zygodrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 7816192 and 7816201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10076 + ... + 10823.

It is an arithmetic number, because the mean of its divisors is an integer number (846450).

Almost surely, 2^7816226 is an apocalyptic number.

7816226 is a deficient number, since it is larger than the sum of its proper divisors (5726974).

7816226 is a wasteful number, since it uses less digits than its factorization.

7816226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20929.

The product of its digits is 8064, while the sum is 32.

The square root of 7816226 is about 2795.7514195651. The cubic root of 7816226 is about 198.4566713162.

It can be divided in two parts, 781 and 6226, that added together give a palindrome (7007).

The spelling of 7816226 in words is "seven million, eight hundred sixteen thousand, two hundred twenty-six".