478222 has 8 divisors (see below), whose sum is σ = 722376. Its totient is φ = 237432.

The previous prime is 478213. The next prime is 478241. The reversal of 478222 is 222874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

478222 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 3 ways as a sum of consecutive naturals, for example, 448 + ... + 1075.

It is an arithmetic number, because the mean of its divisors is an integer number (90297).

2⁴⁷⁸²²² is an apocalyptic number.

478222 is a deficient number, since it is larger than the sum of its proper divisors (244154).

478222 is a wasteful number, since it uses less digits than its factorization.

478222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682.

The product of its digits is 1792, while the sum is 25.

The square root of 478222 is about 691.5359715879. The cubic root of 478222 is about 78.2005577283.

The spelling of 478222 in words is "four hundred seventy-eight thousand, two hundred twenty-two".