478020874 has 4 divisors (see below), whose sum is σ = 717031314. Its totient is φ = 239010436.

The previous prime is 478020859. The next prime is 478020877.

It is a happy number.

478020874 is nontrivially palindromic in base 10.

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., 413105625 + 64915249 = 20325^2 + 8057^2 .

It is not an unprimeable number, because it can be changed into a prime (478020877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119505217 + ... + 119505220.

Almost surely, 2^478020874 is an apocalyptic number.

478020874 is a deficient number, since it is larger than the sum of its proper divisors (239010440).

478020874 is a wasteful number, since it uses less digits than its factorization.

478020874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239010439.

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 478020874 is about 21863.6884811324. The cubic root of 478020874 is about 781.8959324539.

The spelling of 478020874 in words is "four hundred seventy-eight million, twenty thousand, eight hundred seventy-four".