478322242 has 4 divisors (see below), whose sum is σ = 717483366. Its totient is φ = 239161120.

The previous prime is 478322231. The next prime is 478322267. The reversal of 478322242 is 242223874.

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

It can be written as a sum of positive squares in only one way, i.e., 299324601 + 178997641 = 17301^2 + 13379^2 .

It is a junction number, because it is equal to n+sod(n) for n = 478322198 and 478322207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119580559 + ... + 119580562.

Almost surely, 2^478322242 is an apocalyptic number.

478322242 is a deficient number, since it is larger than the sum of its proper divisors (239161124).

478322242 is a wasteful number, since it uses less digits than its factorization.

478322242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239161123.

The product of its digits is 43008, while the sum is 34.

The square root of 478322242 is about 21870.5793704694. The cubic root of 478322242 is about 782.0602132236.

The spelling of 478322242 in words is "four hundred seventy-eight million, three hundred twenty-two thousand, two hundred forty-two".