478893252 has 24 divisors (see below), whose sum is σ = 1176229600. Its totient is φ = 151229376.

The previous prime is 478893241. The next prime is 478893253. The reversal of 478893252 is 252398874.

It is a super-2 number, since 2×478893252² = 458677493622271008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478893253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1049977 + ... + 1050432.

Almost surely, 2^478893252 is an apocalyptic number.

It is an amenable number.

478893252 is an abundant number, since it is smaller than the sum of its proper divisors (697336348).

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

478893252 is a wasteful number, since it uses less digits than its factorization.

478893252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100435 (or 2100433 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 478893252 is about 21883.6297720465. The cubic root of 478893252 is about 782.3712912526.

The spelling of 478893252 in words is "four hundred seventy-eight million, eight hundred ninety-three thousand, two hundred fifty-two".