478584816 has 40 divisors (see below), whose sum is σ = 1309072464. Its totient is φ = 150144000.

The previous prime is 478584803. The next prime is 478584817. The reversal of 478584816 is 618485874.

It is a super-2 number, since 2×478584816² = 458086852211507712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478584817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292435 + ... + 294066.

Almost surely, 2^478584816 is an apocalyptic number.

It is an amenable number.

478584816 is an abundant number, since it is smaller than the sum of its proper divisors (830487648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478584816 is a wasteful number, since it uses less digits than its factorization.

478584816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586529 (or 586523 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 51.

The square root of 478584816 is about 21876.5814514060. The cubic root of 478584816 is about 782.2032904887.

The spelling of 478584816 in words is "four hundred seventy-eight million, five hundred eighty-four thousand, eight hundred sixteen".