478222330 has 16 divisors (see below), whose sum is σ = 861550344. Its totient is φ = 191122240.

The previous prime is 478222289. The next prime is 478222331. The reversal of 478222330 is 33222874.

It can be written as a sum of positive squares in 4 ways, for example, as 387420489 + 90801841 = 19683^2 + 9529^2 .

It is a junction number, because it is equal to n+sod(n) for n = 478222292 and 478222301.

It is not an unprimeable number, because it can be changed into a prime (478222331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8437 + ... + 32056.

Almost surely, 2^478222330 is an apocalyptic number.

478222330 is a deficient number, since it is larger than the sum of its proper divisors (383328014).

478222330 is a wasteful number, since it uses less digits than its factorization.

478222330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41681.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 478222330 is about 21868.2950867232. The cubic root of 478222330 is about 782.0057571587.

The spelling of 478222330 in words is "four hundred seventy-eight million, two hundred twenty-two thousand, three hundred thirty".