478458 has 24 divisors (see below), whose sum is σ = 1092000. Its totient is φ = 150984.

The previous prime is 478453. The next prime is 478459. The reversal of 478458 is 854874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478451) by changing a digit.

478458 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358 + ... + 1041.

It is an arithmetic number, because the mean of its divisors is an integer number (45500).

2⁴⁷⁸⁴⁵⁸ is an apocalyptic number.

478458 is an abundant number, since it is smaller than the sum of its proper divisors (613542).

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

478458 is a wasteful number, since it uses less digits than its factorization.

478458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1423 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 478458 is about 691.7065851935. The cubic root of 478458 is about 78.2134194652.

The spelling of 478458 in words is "four hundred seventy-eight thousand, four hundred fifty-eight".