224997228 has 18 divisors (see below), whose sum is σ = 568743084. Its totient is φ = 74999064.

The previous prime is 224997197. The next prime is 224997239. The reversal of 224997228 is 822799422.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3124926 + ... + 3124997.

It is an arithmetic number, because the mean of its divisors is an integer number (31596838).

Almost surely, 2^224997228 is an apocalyptic number.

It is an amenable number.

224997228 is an abundant number, since it is smaller than the sum of its proper divisors (343745856).

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

224997228 is a wasteful number, since it uses less digits than its factorization.

224997228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6249933 (or 6249928 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 224997228 is about 14999.9075997154. The cubic root of 224997228 is about 608.2177017895.

It can be divided in two parts, 2249972 and 28, that added together give a square (2250000 = 1500²).

The spelling of 224997228 in words is "two hundred twenty-four million, nine hundred ninety-seven thousand, two hundred twenty-eight".