224756772 has 12 divisors (see below), whose sum is σ = 524432496. Its totient is φ = 74918920.

The previous prime is 224756771. The next prime is 224756803. The reversal of 224756772 is 277657422.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (224756771) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9364854 + ... + 9364877.

It is an arithmetic number, because the mean of its divisors is an integer number (43702708).

Almost surely, 2^224756772 is an apocalyptic number.

It is an amenable number.

224756772 is an abundant number, since it is smaller than the sum of its proper divisors (299675724).

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

224756772 is a wasteful number, since it uses less digits than its factorization.

224756772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18729738 (or 18729736 counting only the distinct ones).

The product of its digits is 329280, while the sum is 42.

The square root of 224756772 is about 14991.8902077090. The cubic root of 224756772 is about 608.0009558214. Note that the first 3 decimals are identical.

The spelling of 224756772 in words is "two hundred twenty-four million, seven hundred fifty-six thousand, seven hundred seventy-two".