478642552 has 16 divisors (see below), whose sum is σ = 899866440. Its totient is φ = 238678176.

The previous prime is 478642543. The next prime is 478642583. The reversal of 478642552 is 255246874.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 478642499 and 478642508.

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 in 3 ways as a sum of consecutive naturals, for example, 77218 + ... + 83185.

Almost surely, 2^478642552 is an apocalyptic number.

It is an amenable number.

478642552 is a deficient number, since it is larger than the sum of its proper divisors (421223888).

478642552 is a wasteful number, since it uses less digits than its factorization.

478642552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160782 (or 160778 counting only the distinct ones).

The product of its digits is 537600, while the sum is 43.

The square root of 478642552 is about 21877.9009962108. The cubic root of 478642552 is about 782.2347439683.

The spelling of 478642552 in words is "four hundred seventy-eight million, six hundred forty-two thousand, five hundred fifty-two".