478817222 has 24 divisors (see below), whose sum is σ = 798764256. Its totient is φ = 215014176.

The previous prime is 478817203. The next prime is 478817237. The reversal of 478817222 is 222718874.

It is a self number, because there is not a number n which added to its sum of digits gives 478817222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6638 + ... + 31649.

It is an arithmetic number, because the mean of its divisors is an integer number (33281844).

Almost surely, 2^478817222 is an apocalyptic number.

478817222 is a deficient number, since it is larger than the sum of its proper divisors (319947034).

478817222 is a wasteful number, since it uses less digits than its factorization.

478817222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38352 (or 38339 counting only the distinct ones).

The product of its digits is 100352, while the sum is 41.

The square root of 478817222 is about 21881.8925598313. The cubic root of 478817222 is about 782.3298854785.

The spelling of 478817222 in words is "four hundred seventy-eight million, eight hundred seventeen thousand, two hundred twenty-two".