478581252 has 48 divisors (see below), whose sum is σ = 1132572672. Its totient is φ = 157275040.

The previous prime is 478581247. The next prime is 478581277. The reversal of 478581252 is 252185874.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261613 + ... + 263435.

It is an arithmetic number, because the mean of its divisors is an integer number (23595264).

Almost surely, 2^478581252 is an apocalyptic number.

It is a pronic number, being equal to 21876×21877.

It is an amenable number.

478581252 is an abundant number, since it is smaller than the sum of its proper divisors (653991420).

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

478581252 is a wasteful number, since it uses less digits than its factorization.

478581252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128 (or 2126 counting only the distinct ones).

The product of its digits is 179200, while the sum is 42.

The square root of 478581252 is about 21876.4999942861. The cubic root of 478581252 is about 782.2013488061.

The spelling of 478581252 in words is "four hundred seventy-eight million, five hundred eighty-one thousand, two hundred fifty-two".