478248984 has 24 divisors (see below), whose sum is σ = 1295257860. Its totient is φ = 159416304.

The previous prime is 478248983. The next prime is 478249001. The reversal of 478248984 is 489842874.

478248984 is a `hidden beast` number, since 4 + 7 + 82 + 489 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 478248984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478248983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3321102 + ... + 3321245.

Almost surely, 2^478248984 is an apocalyptic number.

It is an amenable number.

478248984 is an abundant number, since it is smaller than the sum of its proper divisors (817008876).

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

478248984 is a wasteful number, since it uses less digits than its factorization.

478248984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642359 (or 6642352 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 478248984 is about 21868.9044993113. The cubic root of 478248984 is about 782.0202854042.

The spelling of 478248984 in words is "four hundred seventy-eight million, two hundred forty-eight thousand, nine hundred eighty-four".