478531000 has 32 divisors (see below), whose sum is σ = 1119764880. Its totient is φ = 191412000.

The previous prime is 478530971. The next prime is 478531019. The reversal of 478531000 is 135874.

It is a super-2 number, since 2×478531000² = 457983835922000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 478531000.

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, 238266 + ... + 240265.

Almost surely, 2^478531000 is an apocalyptic number.

478531000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

478531000 is an abundant number, since it is smaller than the sum of its proper divisors (641233880).

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

478531000 is a wasteful number, since it uses less digits than its factorization.

478531000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478552 (or 478538 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 478531000 is about 21875.3514257486. The cubic root of 478531000 is about 782.1739702729.

Adding to 478531000 its reverse (135874), we get a palindrome (478666874).

The spelling of 478531000 in words is "four hundred seventy-eight million, five hundred thirty-one thousand".