308226 has 16 divisors (see below), whose sum is σ = 630144. Its totient is φ = 100464.

The previous prime is 308219. The next prime is 308249. The reversal of 308226 is 622803.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308226.

It is an unprimeable number.

308226 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265 + ... + 828.

It is an arithmetic number, because the mean of its divisors is an integer number (39384).

308226 is a Friedman number, since it can be written as 602*8^3+2, using all its digits and the basic arithmetic operations.

2³⁰⁸²²⁶ is an apocalyptic number.

308226 is an abundant number, since it is smaller than the sum of its proper divisors (321918).

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

308226 is a wasteful number, since it uses less digits than its factorization.

308226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 308226 is about 555.1810515499. The cubic root of 308226 is about 67.5496479730.

Multiplying 308226 by its sum of digits (21), we get a palindrome (6472746).

It can be divided in two parts, 30 and 8226, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 308226 in words is "three hundred eight thousand, two hundred twenty-six".