478650636 has 18 divisors (see below), whose sum is σ = 1209922532. Its totient is φ = 159550200.

The previous prime is 478650619. The next prime is 478650637. The reversal of 478650636 is 636056874.

478650636 is a `hidden beast` number, since 4 + 7 + 8 + 6 + 5 + 0 + 636 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 478650591 and 478650600.

It is not an unprimeable number, because it can be changed into a prime (478650637) 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, 6647890 + ... + 6647961.

Almost surely, 2^478650636 is an apocalyptic number.

It is an amenable number.

478650636 is an abundant number, since it is smaller than the sum of its proper divisors (731271896).

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

478650636 is a wasteful number, since it uses less digits than its factorization.

478650636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13295861 (or 13295856 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 478650636 is about 21878.0857480722. The cubic root of 478650636 is about 782.2391477765.

The spelling of 478650636 in words is "four hundred seventy-eight million, six hundred fifty thousand, six hundred thirty-six".