478640824 has 16 divisors (see below), whose sum is σ = 928398600. Its totient is φ = 231067872.

The previous prime is 478640807. The next prime is 478640887. The reversal of 478640824 is 428046874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031322 + ... + 1031785.

Almost surely, 2^478640824 is an apocalyptic number.

It is an amenable number.

478640824 is a deficient number, since it is larger than the sum of its proper divisors (449757776).

478640824 is a wasteful number, since it uses less digits than its factorization.

478640824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063142 (or 2063138 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 43.

The square root of 478640824 is about 21877.8615042696. The cubic root of 478640824 is about 782.2338026233.

The spelling of 478640824 in words is "four hundred seventy-eight million, six hundred forty thousand, eight hundred twenty-four".