478458198 has 32 divisors (see below), whose sum is σ = 1065715200. Its totient is φ = 159114888.

The previous prime is 478458193. The next prime is 478458257. The reversal of 478458198 is 891854874.

478458198 is a `hidden beast` number, since 478 + 4 + 5 + 81 + 98 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478458191) 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 15 ways as a sum of consecutive naturals, for example, 13615 + ... + 33797.

It is an arithmetic number, because the mean of its divisors is an integer number (33303600).

Almost surely, 2^478458198 is an apocalyptic number.

478458198 is an abundant number, since it is smaller than the sum of its proper divisors (587257002).

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

478458198 is a wasteful number, since it uses less digits than its factorization.

478458198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20633 (or 20627 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The square root of 478458198 is about 21873.6873434728. The cubic root of 478458198 is about 782.1343025416.

The spelling of 478458198 in words is "four hundred seventy-eight million, four hundred fifty-eight thousand, one hundred ninety-eight".