478547474 has 4 divisors (see below), whose sum is σ = 717821214. Its totient is φ = 239273736.

The previous prime is 478547423. The next prime is 478547491. The reversal of 478547474 is 474745874.

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., 477728449 + 819025 = 21857^2 + 905^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119636867 + ... + 119636870.

Almost surely, 2^478547474 is an apocalyptic number.

478547474 is a deficient number, since it is larger than the sum of its proper divisors (239273740).

478547474 is a wasteful number, since it uses less digits than its factorization.

478547474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239273739.

The product of its digits is 3512320, while the sum is 50.

The square root of 478547474 is about 21875.7279650301. The cubic root of 478547474 is about 782.1829459270.

The spelling of 478547474 in words is "four hundred seventy-eight million, five hundred forty-seven thousand, four hundred seventy-four".