478422 has 24 divisors (see below), whose sum is σ = 1184976. Its totient is φ = 136656.

The previous prime is 478421. The next prime is 478427. The reversal of 478422 is 224874.

It is a super-2 number, since 2×478422² = 457775220168, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 478422.

It is not an unprimeable number, because it can be changed into a prime (478421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1773 + ... + 2024.

It is an arithmetic number, because the mean of its divisors is an integer number (49374).

2⁴⁷⁸⁴²² is an apocalyptic number.

478422 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

478422 is an abundant number, since it is smaller than the sum of its proper divisors (706554).

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

478422 is a wasteful number, since it uses less digits than its factorization.

478422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812 (or 3809 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 478422 is about 691.6805621094. The cubic root of 478422 is about 78.2114577787.

It can be divided in two parts, 478 and 422, that added together give a square (900 = 30²).

The spelling of 478422 in words is "four hundred seventy-eight thousand, four hundred twenty-two".