308222 has 4 divisors (see below), whose sum is σ = 462336. Its totient is φ = 154110.

The previous prime is 308219. The next prime is 308249. The reversal of 308222 is 222803.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 308222.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 77054 + ... + 77057.

It is an arithmetic number, because the mean of its divisors is an integer number (115584).

2³⁰⁸²²² is an apocalyptic number.

308222 is a deficient number, since it is larger than the sum of its proper divisors (154114).

308222 is a wasteful number, since it uses less digits than its factorization.

308222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154113.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 308222 is about 555.1774491097. The cubic root of 308222 is about 67.5493557634.

The spelling of 308222 in words is "three hundred eight thousand, two hundred twenty-two".