478787472 has 30 divisors (see below), whose sum is σ = 1339940342. Its totient is φ = 159595776.

The previous prime is 478787471. The next prime is 478787483. The reversal of 478787472 is 274787874.

It can be written as a sum of positive squares in only one way, i.e., 303595776 + 175191696 = 17424^2 + 13236^2 .

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

It is not an unprimeable number, because it can be changed into a prime (478787471) 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, 1662313 + ... + 1662600.

Almost surely, 2^478787472 is an apocalyptic number.

It is an amenable number.

478787472 is an abundant number, since it is smaller than the sum of its proper divisors (861152870).

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

478787472 is a wasteful number, since it uses less digits than its factorization.

478787472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324927 (or 3324918 counting only the distinct ones).

The product of its digits is 4917248, while the sum is 54.

The square root of 478787472 is about 21881.2127634645. The cubic root of 478787472 is about 782.3136824995.

The spelling of 478787472 in words is "four hundred seventy-eight million, seven hundred eighty-seven thousand, four hundred seventy-two".