478718632 has 24 divisors (see below), whose sum is σ = 1044144810. Its totient is φ = 205164960.

The previous prime is 478718621. The next prime is 478718633. The reversal of 478718632 is 236817874.

It can be written as a sum of positive squares in only one way, i.e., 245423556 + 233295076 = 15666^2 + 15274^2 .

It is not an unprimeable number, because it can be changed into a prime (478718633) 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, 610219 + ... + 611002.

Almost surely, 2^478718632 is an apocalyptic number.

It is an amenable number.

478718632 is an abundant number, since it is smaller than the sum of its proper divisors (565426178).

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

478718632 is a wasteful number, since it uses less digits than its factorization.

478718632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221241 (or 1221230 counting only the distinct ones).

The product of its digits is 451584, while the sum is 46.

The square root of 478718632 is about 21879.6396679653. The cubic root of 478718632 is about 782.2761870495.

The spelling of 478718632 in words is "four hundred seventy-eight million, seven hundred eighteen thousand, six hundred thirty-two".