478214554 has 4 divisors (see below), whose sum is σ = 717321834. Its totient is φ = 239107276.

The previous prime is 478214537. The next prime is 478214557. The reversal of 478214554 is 455412874.

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., 314246529 + 163968025 = 17727^2 + 12805^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (478214557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119553637 + ... + 119553640.

Almost surely, 2^478214554 is an apocalyptic number.

478214554 is a deficient number, since it is larger than the sum of its proper divisors (239107280).

478214554 is a wasteful number, since it uses less digits than its factorization.

478214554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239107279.

The product of its digits is 179200, while the sum is 40.

The square root of 478214554 is about 21868.1172943626. The cubic root of 478214554 is about 782.0015186074.

The spelling of 478214554 in words is "four hundred seventy-eight million, two hundred fourteen thousand, five hundred fifty-four".