224990 has 16 divisors (see below), whose sum is σ = 410400. Its totient is φ = 88800.

The previous prime is 224977. The next prime is 224993. The reversal of 224990 is 99422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224993) by changing a digit.

224990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1415 + ... + 1565.

It is an arithmetic number, because the mean of its divisors is an integer number (25650).

2²²⁴⁹⁹⁰ is an apocalyptic number.

224990 is a deficient number, since it is larger than the sum of its proper divisors (185410).

224990 is a wasteful number, since it uses less digits than its factorization.

224990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 224990 is about 474.3311079826. The cubic root of 224990 is about 60.8211188754.

The spelling of 224990 in words is "two hundred twenty-four thousand, nine hundred ninety".