478278622 has 8 divisors (see below), whose sum is σ = 718013016. Its totient is φ = 238940952.

The previous prime is 478278617. The next prime is 478278631. The reversal of 478278622 is 226872874.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96148 + ... + 100999.

It is an arithmetic number, because the mean of its divisors is an integer number (89751627).

Almost surely, 2^478278622 is an apocalyptic number.

478278622 is a deficient number, since it is larger than the sum of its proper divisors (239734394).

478278622 is a wasteful number, since it uses less digits than its factorization.

478278622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198362.

The product of its digits is 602112, while the sum is 46.

The square root of 478278622 is about 21869.5821176354. The cubic root of 478278622 is about 782.0364394992.

The spelling of 478278622 in words is "four hundred seventy-eight million, two hundred seventy-eight thousand, six hundred twenty-two".