224724428 has 24 divisors (see below), whose sum is σ = 420235200. Its totient is φ = 104779008.

The previous prime is 224724397. The next prime is 224724431. The reversal of 224724428 is 824427422.

It is an unprimeable 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, 7748 + ... + 22571.

It is an arithmetic number, because the mean of its divisors is an integer number (17509800).

Almost surely, 2^224724428 is an apocalyptic number.

It is an amenable number.

224724428 is a deficient number, since it is larger than the sum of its proper divisors (195510772).

224724428 is a wasteful number, since it uses less digits than its factorization.

224724428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30449 (or 30447 counting only the distinct ones).

The product of its digits is 57344, while the sum is 35.

The square root of 224724428 is about 14990.8114523531. The cubic root of 224724428 is about 607.9717892901.

The spelling of 224724428 in words is "two hundred twenty-four million, seven hundred twenty-four thousand, four hundred twenty-eight".