478309632 has 72 divisors (see below), whose sum is σ = 1277222016. Its totient is φ = 158908416.

The previous prime is 478309627. The next prime is 478309669. The reversal of 478309632 is 236903874.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281008 + ... + 282704.

Almost surely, 2^478309632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478309632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638611008).

478309632 is an abundant number, since it is smaller than the sum of its proper divisors (798912384).

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

478309632 is a wasteful number, since it uses less digits than its factorization.

478309632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083 (or 2069 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 478309632 is about 21870.2910817392. The cubic root of 478309632 is about 782.0533406838.

The spelling of 478309632 in words is "four hundred seventy-eight million, three hundred nine thousand, six hundred thirty-two".