478213082 has 4 divisors (see below), whose sum is σ = 717319626. Its totient is φ = 239106540.

The previous prime is 478213069. The next prime is 478213091. The reversal of 478213082 is 280312874.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 280312874 = 2 ⋅140156437.

It can be written as a sum of positive squares in only one way, i.e., 319730161 + 158482921 = 17881^2 + 12589^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119553269 + ... + 119553272.

Almost surely, 2^478213082 is an apocalyptic number.

478213082 is a deficient number, since it is larger than the sum of its proper divisors (239106544).

478213082 is a wasteful number, since it uses less digits than its factorization.

478213082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239106543.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 478213082 is about 21868.0836380328. The cubic root of 478213082 is about 782.0007162427. Note that the first 3 decimals are identical.

The spelling of 478213082 in words is "four hundred seventy-eight million, two hundred thirteen thousand, eighty-two".