224790 has 32 divisors (see below), whose sum is σ = 552960. Its totient is φ = 58464.

The previous prime is 224771. The next prime is 224797. The reversal of 224790 is 97422.

It is a self number, because there is not a number n which added to its sum of digits gives 224790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1707 + ... + 1833.

It is an arithmetic number, because the mean of its divisors is an integer number (17280).

2²²⁴⁷⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 224790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276480).

224790 is an abundant number, since it is smaller than the sum of its proper divisors (328170).

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

224790 is a wasteful number, since it uses less digits than its factorization.

224790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 224790 is about 474.1202379144. The cubic root of 224790 is about 60.8030916595.

The spelling of 224790 in words is "two hundred twenty-four thousand, seven hundred ninety".