224749 has 8 divisors (see below), whose sum is σ = 260288. Its totient is φ = 190080.

The previous prime is 224743. The next prime is 224759. The reversal of 224749 is 947422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 224749 - 2⁵ = 224717 is a prime.

It is a super-2 number, since 2×224749² = 101024226002, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224743) by changing a digit.

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, 514 + ... + 844.

It is an arithmetic number, because the mean of its divisors is an integer number (32536).

2²²⁴⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

224749 is a deficient number, since it is larger than the sum of its proper divisors (35539).

224749 is an equidigital number, since it uses as much as digits as its factorization.

224749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435.

The product of its digits is 4032, while the sum is 28.

The square root of 224749 is about 474.0769979655. The cubic root of 224749 is about 60.7993947597.

The spelling of 224749 in words is "two hundred twenty-four thousand, seven hundred forty-nine".