478320814 has 4 divisors (see below), whose sum is σ = 717481224. Its totient is φ = 239160406.

The previous prime is 478320803. The next prime is 478320827. The reversal of 478320814 is 418023874.

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

It is a super-2 number, since 2×478320814² = 457581602211245192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 119580202 + ... + 119580205.

It is an arithmetic number, because the mean of its divisors is an integer number (179370306).

Almost surely, 2^478320814 is an apocalyptic number.

478320814 is a deficient number, since it is larger than the sum of its proper divisors (239160410).

478320814 is a wasteful number, since it uses less digits than its factorization.

478320814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239160409.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 478320814 is about 21870.5467238476. The cubic root of 478320814 is about 782.0594349595.

The spelling of 478320814 in words is "four hundred seventy-eight million, three hundred twenty thousand, eight hundred fourteen".