224478 has 16 divisors (see below), whose sum is σ = 498960. Its totient is φ = 74808.

The previous prime is 224473. The next prime is 224491. The reversal of 224478 is 874422.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 10 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025 + ... + 2132.

It is an arithmetic number, because the mean of its divisors is an integer number (31185).

2²²⁴⁴⁷⁸ is an apocalyptic number.

224478 is an abundant number, since it is smaller than the sum of its proper divisors (274482).

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

224478 is a wasteful number, since it uses less digits than its factorization.

224478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4168 (or 4162 counting only the distinct ones).

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

The square root of 224478 is about 473.7910932046. The cubic root of 224478 is about 60.7749478391.

The spelling of 224478 in words is "two hundred twenty-four thousand, four hundred seventy-eight".