224542 has 12 divisors (see below), whose sum is σ = 356616. Its totient is φ = 106020.

The previous prime is 224527. The next prime is 224563. The reversal of 224542 is 245422.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 567 + ... + 877.

It is an arithmetic number, because the mean of its divisors is an integer number (29718).

2²²⁴⁵⁴² is an apocalyptic number.

224542 is a deficient number, since it is larger than the sum of its proper divisors (132074).

224542 is a wasteful number, since it uses less digits than its factorization.

224542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 332 counting only the distinct ones).

The product of its digits is 640, while the sum is 19.

The square root of 224542 is about 473.8586287069. The cubic root of 224542 is about 60.7807230555.

Adding to 224542 its reverse (245422), we get a palindrome (469964).

The spelling of 224542 in words is "two hundred twenty-four thousand, five hundred forty-two".